mirror of
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feat(frontend): Upgrade embedPDF to v2.6.0 and migrate to pdf-lib fork, fix attachment/bookmark panel (#5723)
# Description of Changes Upgrades embedPDF from v2.5.0 to v2.6.0 and migrates from unmaintained pdf-lib to @cantoo/pdf-lib fork. Adds defensive error handling for malformed PDFs and improves bridge lifecycle management. ### Changes **Dependencies** - Upgrade all @embedpdf/* packages from ^2.5.0 to ^2.6.0 - Replace pdf-lib with @cantoo/pdf-lib (maintained fork with better TypeScript support) **PDF Viewer Infrastructure (attachment/bookmark fix)** - Add useDocumentReady hook to track document lifecycle across bridges - Implement defensive bridge cleanup to prevent stale registrations - Fix race condition in document ready state detection by subscribing to events before checking state **Link Extraction (updated to cantoo/pdf-lib)** - Add graceful error handling for PDFs with invalid catalog structures - Extract enhanced link metadata (tooltips, colors, border styles, highlight modes) - Return empty results instead of throwing on malformed PDFs - Add validation for link creation (destination page bounds, rect dimensions, color values) **Signature Flattening (updated to cantoo/pdf-lib)** - Improve SVG embedding with three-tier fallback strategy (native vector, rasterized PNG, placeholder) - Add proper Unicode handling for PDF form tooltips via PDFString.decodeText() - Extract SVG utilities into cleaner strategy pattern **Form Field Processing (updated to cantoo/pdf-lib)** - Add support for display labels vs export values in dropdown/list fields per PDF spec 12.7.4.4 - Implement caching for expensive field property lookups - Add proper handling of malformed /Opt arrays <!-- Please provide a summary of the changes, including: - What was changed - Why the change was made - Any challenges encountered Closes #(issue_number) --> --- ## Checklist ### General - [X] I have read the [Contribution Guidelines](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/CONTRIBUTING.md) - [X] I have read the [Stirling-PDF Developer Guide](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/devGuide/DeveloperGuide.md) (if applicable) - [ ] I have read the [How to add new languages to Stirling-PDF](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/devGuide/HowToAddNewLanguage.md) (if applicable) - [X] I have performed a self-review of my own code - [X] My changes generate no new warnings ### Documentation - [ ] I have updated relevant docs on [Stirling-PDF's doc repo](https://github.com/Stirling-Tools/Stirling-Tools.github.io/blob/main/docs/) (if functionality has heavily changed) - [ ] I have read the section [Add New Translation Tags](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/devGuide/HowToAddNewLanguage.md#add-new-translation-tags) (for new translation tags only) ### Translations (if applicable) - [ ] I ran [`scripts/counter_translation.py`](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/docs/counter_translation.md) ### UI Changes (if applicable) - [ ] Screenshots or videos demonstrating the UI changes are attached (e.g., as comments or direct attachments in the PR) ### Testing (if applicable) - [X] I have tested my changes locally. Refer to the [Testing Guide](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/devGuide/DeveloperGuide.md#6-testing) for more details. --------- Signed-off-by: Balázs Szücs <[email protected]>
This commit is contained in:
Balázs Szücs
@@ -1,7 +1,7 @@
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import { useTranslation } from 'react-i18next';
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import { ToolType, useToolOperation, CustomProcessorResult } from '@app/hooks/tools/shared/useToolOperation';
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import { AdjustContrastParameters, defaultParameters } from '@app/hooks/tools/adjustContrast/useAdjustContrastParameters';
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import { PDFDocument as PDFLibDocument } from 'pdf-lib';
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import { PDFDocument as PDFLibDocument } from '@cantoo/pdf-lib';
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import { applyAdjustmentsToCanvas } from '@app/components/tools/adjustContrast/utils';
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import { pdfWorkerManager } from '@app/services/pdfWorkerManager';
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import { createFileFromApiResponse } from '@app/utils/fileResponseUtils';
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@@ -2,7 +2,7 @@ import { useTranslation } from 'react-i18next';
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import { useToolOperation, ToolType, CustomProcessorResult } from '@app/hooks/tools/shared/useToolOperation';
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import { createStandardErrorHandler } from '@app/utils/toolErrorHandler';
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import { RemoveAnnotationsParameters, defaultParameters } from '@app/hooks/tools/removeAnnotations/useRemoveAnnotationsParameters';
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import { PDFDocument, PDFName, PDFRef, PDFDict } from 'pdf-lib';
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import { PDFDocument, PDFName, PDFRef, PDFDict } from '@cantoo/pdf-lib';
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// Client-side PDF processing using PDF-lib
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const removeAnnotationsProcessor = async (_parameters: RemoveAnnotationsParameters, files: File[]): Promise<CustomProcessorResult> => {
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const processedFiles: File[] = [];
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+1
-1
@@ -1,4 +1,4 @@
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import { PDFFont, PDFPage, rgb } from 'pdf-lib';
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import { PDFFont, PDFPage, rgb } from '@cantoo/pdf-lib';
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import { wrapText } from '@app/hooks/tools/validateSignature/utils/pdfText';
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import { colorPalette } from '@app/hooks/tools/validateSignature/utils/pdfPalette';
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+1
-1
@@ -1,4 +1,4 @@
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import { PDFFont, PDFPage } from 'pdf-lib';
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import { PDFFont, PDFPage } from '@cantoo/pdf-lib';
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import { wrapText } from '@app/hooks/tools/validateSignature/utils/pdfText';
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import { colorPalette } from '@app/hooks/tools/validateSignature/utils/pdfPalette';
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+1
-1
@@ -1,5 +1,5 @@
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import type { TFunction } from 'i18next';
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import { PDFFont, PDFPage } from 'pdf-lib';
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import { PDFFont, PDFPage } from '@cantoo/pdf-lib';
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import { SignatureValidationSignature } from '@app/types/validateSignature';
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import { drawFieldBox } from '@app/hooks/tools/validateSignature/outputtedPDFSections/FieldBoxSection';
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import { drawStatusBadge } from '@app/hooks/tools/validateSignature/outputtedPDFSections/StatusBadgeSection';
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+1
-1
@@ -1,4 +1,4 @@
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import { PDFFont, PDFPage, rgb } from 'pdf-lib';
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import { PDFFont, PDFPage, rgb } from '@cantoo/pdf-lib';
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interface StatusBadgeOptions {
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page: PDFPage;
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+1
-1
@@ -1,5 +1,5 @@
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import type { TFunction } from 'i18next';
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import { PDFFont, PDFImage, PDFPage } from 'pdf-lib';
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import { PDFFont, PDFImage, PDFPage } from '@cantoo/pdf-lib';
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import { SignatureValidationReportEntry } from '@app/types/validateSignature';
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import { drawFieldBox } from '@app/hooks/tools/validateSignature/outputtedPDFSections/FieldBoxSection';
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import { drawThumbnailImage, drawThumbnailPlaceholder } from '@app/hooks/tools/validateSignature/outputtedPDFSections/ThumbnailSection';
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+1
-1
@@ -1,4 +1,4 @@
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import { PDFFont, PDFPage, PDFImage } from 'pdf-lib';
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import { PDFFont, PDFPage, PDFImage } from '@cantoo/pdf-lib';
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import { colorPalette } from '@app/hooks/tools/validateSignature/utils/pdfPalette';
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export const drawThumbnailPlaceholder = (
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@@ -1,4 +1,4 @@
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import { PDFDocument, PDFPage, StandardFonts } from 'pdf-lib';
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import { PDFDocument, PDFPage, StandardFonts } from '@cantoo/pdf-lib';
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import type { TFunction } from 'i18next';
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import { SignatureValidationReportEntry } from '@app/types/validateSignature';
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import { REPORT_PDF_FILENAME } from '@app/hooks/tools/validateSignature/utils/signatureUtils';
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@@ -1,4 +1,4 @@
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import { PDFDocument, PDFFont, PDFImage } from 'pdf-lib';
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import { PDFDocument, PDFFont, PDFImage } from '@cantoo/pdf-lib';
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import type { TFunction } from 'i18next';
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import { colorPalette } from '@app/hooks/tools/validateSignature/utils/pdfPalette';
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@@ -1,4 +1,4 @@
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import { rgb } from 'pdf-lib';
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import { rgb } from '@cantoo/pdf-lib';
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type RgbTuple = [number, number, number];
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@@ -1,4 +1,4 @@
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import { PDFFont } from 'pdf-lib';
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import { PDFFont } from '@cantoo/pdf-lib';
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export const wrapText = (text: string, font: PDFFont, fontSize: number, maxWidth: number): string[] => {
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const lines: string[] = [];
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@@ -1,32 +1,14 @@
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import { useState, useEffect, useRef } from 'react';
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import {
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PDFDocument,
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PDFDict,
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PDFName,
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PDFArray,
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PDFString,
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PDFHexString,
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PDFNumber,
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PDFRef,
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PDFPage,
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PDFContext,
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} from 'pdf-lib';
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} from '@cantoo/pdf-lib';
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import {
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PdfLibLink,
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extractLinksFromPage,
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} from '@app/utils/pdfLinkUtils';
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export type LinkType = 'internal' | 'external' | 'unknown';
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export interface PdfLibLink {
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id: string;
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/** Index of this annotation in the page's /Annots array (used for deletion matching). */
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annotIndex: number;
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/** Rectangle in PDF-page coordinate space (top-left origin, unscaled). */
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rect: { x: number; y: number; width: number; height: number };
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type: LinkType;
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/** 0-based target page index (internal links). */
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targetPage?: number;
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/** URI for external links. */
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uri?: string;
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}
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export type { PdfLibLink };
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export interface PdfLibLinksResult {
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links: PdfLibLink[];
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@@ -43,6 +25,9 @@ interface CachedDoc {
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refCount: number;
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/** Per-page extracted links (lazy, filled on first request). */
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pageLinks: Map<number, { links: PdfLibLink[]; width: number; height: number }>;
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/** Set to true when the PDF catalog/pages tree is invalid, so we
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* skip link extraction on all subsequent calls without retrying. */
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invalidCatalog?: boolean;
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}
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const docCache = new Map<string, Promise<CachedDoc>>();
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@@ -54,11 +39,17 @@ async function acquireDocument(url: string): Promise<CachedDoc> {
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const buffer = await response.arrayBuffer();
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const doc = await PDFDocument.load(new Uint8Array(buffer), {
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ignoreEncryption: true,
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updateMetadata: false,
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throwOnInvalidObject: false,
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});
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return { doc, refCount: 0, pageLinks: new Map() };
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})();
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docCache.set(url, promise);
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promise.catch(() => {
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docCache.delete(url);
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});
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}
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const cached = await docCache.get(url)!;
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cached.refCount++;
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@@ -76,241 +67,7 @@ function releaseDocument(url: string): void {
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});
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}
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function num(ctx: PDFContext, value: unknown): number {
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if (value instanceof PDFRef) value = ctx.lookup(value);
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if (value instanceof PDFNumber) return value.asNumber();
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if (typeof value === 'number') return value;
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return 0;
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}
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function str(ctx: PDFContext, value: unknown): string | undefined {
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if (value instanceof PDFRef) value = ctx.lookup(value);
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if (value instanceof PDFString) return value.decodeText();
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if (value instanceof PDFHexString) return value.decodeText();
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if (typeof value === 'string') return value;
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return undefined;
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}
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function resolvePageIndex(doc: PDFDocument, pageRef: PDFRef): number | undefined {
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const pages = doc.getPages();
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for (let i = 0; i < pages.length; i++) {
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const ref = pages[i].ref;
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if (
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ref === pageRef ||
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(ref.objectNumber === pageRef.objectNumber &&
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ref.generationNumber === pageRef.generationNumber)
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) {
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return i;
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}
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}
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return undefined;
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}
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function resolveDestArray(
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doc: PDFDocument,
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ctx: PDFContext,
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destArr: PDFArray,
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): number | undefined {
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if (destArr.size() < 1) return undefined;
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const first = destArr.get(0);
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if (first instanceof PDFRef) {
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return resolvePageIndex(doc, first);
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}
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const n = num(ctx, first);
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if (typeof n === 'number' && n >= 0) return n;
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return undefined;
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}
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function resolveNamedDest(
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doc: PDFDocument,
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ctx: PDFContext,
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name: string,
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): number | undefined {
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try {
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const catalog = doc.catalog;
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const namesRaw = catalog.get(PDFName.of('Names'));
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const namesDict = namesRaw instanceof PDFRef ? ctx.lookup(namesRaw) : namesRaw;
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if (namesDict instanceof PDFDict) {
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const destsRaw = namesDict.get(PDFName.of('Dests'));
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const destsTree = destsRaw instanceof PDFRef ? ctx.lookup(destsRaw) : destsRaw;
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if (destsTree instanceof PDFDict) {
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const result = searchNameTree(doc, ctx, destsTree, name);
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if (result !== undefined) return result;
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}
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}
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const destsRaw = catalog.get(PDFName.of('Dests'));
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const destsDict = destsRaw instanceof PDFRef ? ctx.lookup(destsRaw) : destsRaw;
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if (destsDict instanceof PDFDict) {
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const dest = destsDict.get(PDFName.of(name));
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const destResolved = dest instanceof PDFRef ? ctx.lookup(dest) : dest;
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if (destResolved instanceof PDFArray) {
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return resolveDestArray(doc, ctx, destResolved);
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}
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}
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} catch {
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// Swallow – named dest resolution is best-effort
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}
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return undefined;
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}
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function searchNameTree(
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doc: PDFDocument,
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ctx: PDFContext,
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node: PDFDict,
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name: string,
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): number | undefined {
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const namesArr = node.get(PDFName.of('Names'));
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const resolved = namesArr instanceof PDFRef ? ctx.lookup(namesArr) : namesArr;
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if (resolved instanceof PDFArray) {
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for (let i = 0; i < resolved.size(); i += 2) {
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const key = str(ctx, resolved.get(i));
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if (key === name) {
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const val = resolved.get(i + 1);
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const valResolved = val instanceof PDFRef ? ctx.lookup(val) : val;
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if (valResolved instanceof PDFArray) {
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return resolveDestArray(doc, ctx, valResolved);
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}
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if (valResolved instanceof PDFDict) {
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const d = valResolved.get(PDFName.of('D'));
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const dResolved = d instanceof PDFRef ? ctx.lookup(d) : d;
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if (dResolved instanceof PDFArray) {
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return resolveDestArray(doc, ctx, dResolved);
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}
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}
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}
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}
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}
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const kidsArr = node.get(PDFName.of('Kids'));
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const kidsResolved = kidsArr instanceof PDFRef ? ctx.lookup(kidsArr) : kidsArr;
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if (kidsResolved instanceof PDFArray) {
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for (let i = 0; i < kidsResolved.size(); i++) {
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const kidRef = kidsResolved.get(i);
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const kid = kidRef instanceof PDFRef ? ctx.lookup(kidRef) : kidRef;
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if (kid instanceof PDFDict) {
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const limits = kid.get(PDFName.of('Limits'));
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const limitsResolved = limits instanceof PDFRef ? ctx.lookup(limits) : limits;
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if (limitsResolved instanceof PDFArray && limitsResolved.size() >= 2) {
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const lo = str(ctx, limitsResolved.get(0)) ?? '';
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const hi = str(ctx, limitsResolved.get(1)) ?? '';
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if (name < lo || name > hi) continue;
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}
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const result = searchNameTree(doc, ctx, kid, name);
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if (result !== undefined) return result;
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}
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}
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}
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return undefined;
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}
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function extractLinksFromPage(
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doc: PDFDocument,
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page: PDFPage,
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pageIndex: number,
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): PdfLibLink[] {
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const links: PdfLibLink[] = [];
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const ctx = doc.context;
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const { height: pageHeight } = page.getSize();
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const annotsRaw = page.node.get(PDFName.of('Annots'));
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if (!annotsRaw) return links;
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const annots = annotsRaw instanceof PDFRef ? ctx.lookup(annotsRaw) : annotsRaw;
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if (!(annots instanceof PDFArray)) return links;
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for (let i = 0; i < annots.size(); i++) {
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try {
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const annotRaw = annots.get(i);
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const annot = annotRaw instanceof PDFRef ? ctx.lookup(annotRaw) : annotRaw;
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if (!(annot instanceof PDFDict)) continue;
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const subtype = annot.get(PDFName.of('Subtype'));
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if (subtype?.toString() !== '/Link') continue;
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const rectRaw = annot.get(PDFName.of('Rect'));
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const rect = rectRaw instanceof PDFRef ? ctx.lookup(rectRaw) : rectRaw;
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if (!(rect instanceof PDFArray) || rect.size() < 4) continue;
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const x1 = num(ctx, rect.get(0));
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const y1 = num(ctx, rect.get(1));
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const x2 = num(ctx, rect.get(2));
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const y2 = num(ctx, rect.get(3));
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const left = Math.min(x1, x2);
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const bottom = Math.min(y1, y2);
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const width = Math.abs(x2 - x1);
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const height = Math.abs(y2 - y1);
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const top = pageHeight - bottom - height;
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let linkType: LinkType = 'unknown';
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let targetPage: number | undefined;
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let uri: string | undefined;
|
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|
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const actionRaw = annot.get(PDFName.of('A'));
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const action = actionRaw instanceof PDFRef ? ctx.lookup(actionRaw) : actionRaw;
|
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|
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if (action instanceof PDFDict) {
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const actionType = action.get(PDFName.of('S'))?.toString();
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|
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if (actionType === '/URI') {
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linkType = 'external';
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uri = str(ctx, action.get(PDFName.of('URI')));
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} else if (actionType === '/GoTo') {
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linkType = 'internal';
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const dest = action.get(PDFName.of('D'));
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const destResolved = dest instanceof PDFRef ? ctx.lookup(dest) : dest;
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if (destResolved instanceof PDFArray) {
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targetPage = resolveDestArray(doc, ctx, destResolved);
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} else {
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const destName = str(ctx, destResolved);
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if (destName) {
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targetPage = resolveNamedDest(doc, ctx, destName);
|
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}
|
||||
}
|
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} else if (actionType === '/GoToR') {
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linkType = 'external';
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uri = str(ctx, action.get(PDFName.of('F')));
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} else if (actionType === '/Launch') {
|
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linkType = 'external';
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uri = str(ctx, action.get(PDFName.of('F')));
|
||||
}
|
||||
}
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|
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if (linkType === 'unknown') {
|
||||
const destRaw = annot.get(PDFName.of('Dest'));
|
||||
const dest = destRaw instanceof PDFRef ? ctx.lookup(destRaw) : destRaw;
|
||||
|
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if (dest instanceof PDFArray) {
|
||||
linkType = 'internal';
|
||||
targetPage = resolveDestArray(doc, ctx, dest);
|
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} else {
|
||||
const destName = str(ctx, dest);
|
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if (destName) {
|
||||
linkType = 'internal';
|
||||
targetPage = resolveNamedDest(doc, ctx, destName);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
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links.push({
|
||||
id: `pdflib-link-${pageIndex}-${i}`,
|
||||
annotIndex: i,
|
||||
rect: { x: left, y: top, width, height },
|
||||
type: linkType,
|
||||
targetPage,
|
||||
uri,
|
||||
});
|
||||
} catch (e) {
|
||||
console.warn('[usePdfLibLinks] Failed to parse annotation:', e);
|
||||
}
|
||||
}
|
||||
|
||||
return links;
|
||||
}
|
||||
|
||||
export function usePdfLibLinks(
|
||||
pdfUrl: string | null,
|
||||
@@ -350,20 +107,41 @@ export function usePdfLibLinks(
|
||||
return;
|
||||
}
|
||||
|
||||
if (cached.invalidCatalog) {
|
||||
setResult({ links: [], pdfPageWidth: 0, pdfPageHeight: 0, loading: false });
|
||||
releaseDocument(url);
|
||||
return;
|
||||
}
|
||||
|
||||
let pageData = cached.pageLinks.get(pageIndex);
|
||||
if (!pageData) {
|
||||
const pageCount = cached.doc.getPageCount();
|
||||
let pageCount: number;
|
||||
try {
|
||||
pageCount = cached.doc.getPageCount();
|
||||
} catch {
|
||||
cached.invalidCatalog = true;
|
||||
setResult({ links: [], pdfPageWidth: 0, pdfPageHeight: 0, loading: false });
|
||||
releaseDocument(url);
|
||||
return;
|
||||
}
|
||||
|
||||
if (pageIndex < 0 || pageIndex >= pageCount) {
|
||||
setResult({ links: [], pdfPageWidth: 0, pdfPageHeight: 0, loading: false });
|
||||
releaseDocument(url);
|
||||
return;
|
||||
}
|
||||
|
||||
const page = cached.doc.getPage(pageIndex);
|
||||
const { width, height } = page.getSize();
|
||||
const links = extractLinksFromPage(cached.doc, page, pageIndex);
|
||||
pageData = { links, width, height };
|
||||
cached.pageLinks.set(pageIndex, pageData);
|
||||
try {
|
||||
const page = cached.doc.getPage(pageIndex);
|
||||
const { width, height } = page.getSize();
|
||||
const links = extractLinksFromPage(cached.doc, page, pageIndex);
|
||||
pageData = { links, width, height };
|
||||
cached.pageLinks.set(pageIndex, pageData);
|
||||
} catch (pageError) {
|
||||
console.warn(`[usePdfLibLinks] Failed to read page ${pageIndex}:`, pageError);
|
||||
pageData = { links: [], width: 0, height: 0 };
|
||||
cached.pageLinks.set(pageIndex, pageData);
|
||||
}
|
||||
}
|
||||
|
||||
if (!cancelled && mountedRef.current) {
|
||||
@@ -377,7 +155,7 @@ export function usePdfLibLinks(
|
||||
|
||||
releaseDocument(url);
|
||||
} catch (error) {
|
||||
console.error('[usePdfLibLinks] Failed to extract links:', error);
|
||||
console.warn('[usePdfLibLinks] Failed to extract links:', error);
|
||||
if (!cancelled && mountedRef.current) {
|
||||
setResult({ links: [], pdfPageWidth: 0, pdfPageHeight: 0, loading: false });
|
||||
}
|
||||
|
||||
Reference in New Issue
Block a user