Which links can the PDF link extractor find?

It extracts PDF link annotations, including external HTTP links, email links, and internal destinations. A URL displayed only as unlinked text may not be encoded as an annotation and therefore may not appear.

How does broken-link checking work?

When requested, the tool sends up to 20 unique public HTTP URLs to a protected server endpoint that follows a limited number of redirects and checks the final HTTP response. The PDF itself is never sent.

Does a 403 response mean the link is broken?

Not necessarily. A 401 or 403 often means the destination restricts automated requests, so the tool labels it restricted rather than broken. Timeouts and network failures are labeled unverified.

Free tools

Extract and Check Every Link in a PDF

Find external, email, and internal PDF links, group occurrences by page, identify duplicates, and optionally test public HTTP status.

Copy-paste outputs

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Tool 01

PDF Link Extractor and Broken Link Checker

Extract links by page, find duplicates, and optionally test public HTTP status.

Extract and inspect PDF links

List external, email, and internal links by page, then optionally check public HTTP status.

Drop a PDF here or choose a file

Processed locally in your browser · up to 25 MB · no OCR

How it works

PDF Link Extractor and Broken Link Checker: methodology and worked example

How this tool computes its result

The extractor reads PDF link annotations from every page and classifies each target as external HTTP, email, or internal. Identical targets are grouped into one record containing page numbers and occurrence count. The optional status check sends at most 20 unique external URLs, never the PDF, to a protected server route. That route rejects local and private network destinations, restricts ports, validates DNS results, follows at most four validated redirects, tries HEAD first, falls back to a byte-range GET when HEAD is unsupported, and classifies the final response as reachable, redirected, restricted, broken, blocked, or unverified.

Worked example

A 24-page whitepaper contains the same product URL on pages 2, 8, and 24, a mailto link on page 24, and an outdated external source returning HTTP 404. The inventory shows three unique targets, groups the product URL into one record with three occurrences, and labels the source URL broken after the optional status check. If another destination returns 403 to the checker, it is labeled restricted rather than falsely declared broken.

When not to use this tool

The tool reads encoded hyperlink annotations. A URL printed visually as ordinary text may not be an actual PDF link and can be absent from the inventory. Status checks are point-in-time network observations: destinations can rate-limit automation, block the checking region, require authentication, or change after the report. A successful HTTP response also does not prove that the target content is correct.

Common mistakes

- Assuming a 401 or 403 is a broken page. It usually means the automated request is restricted.
- Expecting every visible URL string to appear even when the PDF author did not create a link annotation.
- Checking only unique URL count and missing repeated outdated links across many pages. Occurrences and page references matter.

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