#167 · PDF Comparison & QA Tool

Compare PDF Bookmarks

Compare bookmark titles, nesting paths, and destinations between two PDF outlines and save the results as JSON.

PDF Tool

Two PDFs required
pages
Ad space

How to use this PDF tool

  1. Select exactly two PDFs in comparison order.
  2. Review the scope and start the local analysis.
  3. Check the on-page summary, then download the JSON report.

What this tool does

The tool walks each document outline recursively and creates a stable path for every bookmark before comparison.

Flattened outline entries are matched by hierarchy path; destination representations are compared when available.

Named destinations can resolve differently across generators, so destination changes should be reviewed in the original PDFs.

Supported formats

This page accepts standard PDF files readable by PDF.js. Password-protected, damaged, unusually large, and dynamic XFA documents may be unsupported.

InputSupport
PDFSupported
Encrypted PDFLimited
Dynamic XFALimited

Tips for better results

  • Use original PDFs rather than scans of printed pages.
  • For comparisons, select the older PDF first and the revised PDF second.
  • Verify flagged findings in a desktop PDF viewer before production use.

FAQ

Does Compare PDF Bookmarks upload my PDF to a server?

No. The PDF is read by JavaScript in your browser. The page does not add a file-upload request.

Can Compare PDF Bookmarks read password-protected PDF files?

A PDF that requires a password may not open. Remove authorized encryption first, then run the inspection again.

What does the downloaded Compare PDF Bookmarks report contain?

The JSON report contains the source file names, analysis time, supported findings, and tool-specific differences or warnings.

Will Compare PDF Bookmarks work with very large PDFs?

Large or image-heavy PDFs can use substantial memory. Close other tabs and test a smaller copy if the browser becomes slow.

How accurate is Compare PDF Bookmarks for production preflight?

Named destinations can resolve differently across generators, so destination changes should be reviewed in the original PDFs. For regulated or press-critical work, confirm the result with a dedicated desktop preflight application.

Report fields

FieldMeaning
sourceFilesLocal input names and sizes
resultTool-specific findings
generatedAtReport creation time

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