Bookmarks or CSV
Import up to 500 labels and their 1-based destination pages. Choose case-sensitive or case-insensitive matching.
A product by Kastovia Holdings LLC · Chrome
PDF Reference LinkerAdd clickable internal links to repeated PDF references.
Map each label once, find every repeated match in selectable text, review each source and target locally, and export a linked copy. Your source PDF and mapping stay on your device.
Install the free extension to preview every match and export CSV. Buy Pro only when you need the linked-PDF export; paste the emailed license key into the extension.Illustrative exampleReference flow / 01
Page 7Appendix BReference found
MapAppendix BTarget page 42
Review3 matchesDeselect any result
ExportLinked copyClick → page 42
Example only. No customer document or result is shown.
A controlled pass from references to links.
Enter mappings manually, use existing internal bookmarks, or import a CSV with label and target_page columns. The extension finds exact whole-word labels in selectable text on one visual line and shows the source page, matched text, and destination before anything is written. Destination numbers are physical PDF positions starting at 1, even when printed page labels differ.
Every match stays visible
Inspect up to 10,000 matches, jump to the source and target pages, and deselect false positives.
A separate linked PDF
Pro writes standard internal click links to a downloaded copy. The original file is never overwritten.
Try the workflow with the three-page sample PDF and sample mapping CSV, then follow the step-by-step internal-link guide ↗.
Launch scope
One careful job, with explicit limits.
The preview and match report are free. A Pro license unlocks the linked-PDF export after an online license check.
One PDF at a time
Unsigned, unencrypted PDFs with selectable text, up to 50 MiB and 500 pages. Dense documents and large label sets can reach the browser’s scan-work limit before these file or page ceilings; see support for the exact resource limits.
Full preview and report
Import, scan, inspect, deselect, and download the CSV match report without a license.
Linked-PDF export
EUR 49 once, tax included, with no recurring fee for version 1 and no license expiry.
Three installations
Activate up to three browser installations. Each paid export needs an online license check; previews continue offline.
Your document does not become a service upload.
PDF text extraction, mapping, match review, report generation, and linked-copy creation run in the extension. PDF contents, filenames, mapping labels, and target pages are not sent to Kastovia, Dodo Payments, Google, or an AI service.
Only licensing and checkout use the internet. The extension does not include OCR and cannot match text that exists only in scanned images.
Before you link
Common questions about PDF internal links.
Does PDF Reference Linker upload my PDF?
No. PDF reading, matching, review, report generation, and linked-copy creation run locally in the extension.
What can I do for free?
You can import mappings, scan, review every match, deselect results, and download the CSV match report for free. Pro is required only to export the linked PDF.
How do repeated PDF references become links?
Map each label once by importing bookmarks or CSV, or by entering it manually. The extension finds repeated exact whole-word matches and lets you review every source and target before export.
Available now
Install, review, then export.
Install from the Chrome Web Store, open the extension to preview your matches for free, then buy Pro for €49 once if you need the linked-PDF export. Dodo emails your license key; paste it into the extension to activate up to three browser installations.