Description
After you replace or update a PDF in the Media Library, clients and agencies often need a quick answer: which pages still point at this file, and does the public URL match the file on disk?
Aschere PDF Reference Verifier (free) is a read-only Tools screen that:
- Lets an administrator pick one local PDF from the Media Library
- Scans core post and page body content (including the core File block) for direct file URLs
- Lists referencing pages and their public/publish status
- Shows local size, mtime, and SHA-256
- Optionally fetches the attachment URL once from this site only (SSRF-safe host check) and compares the hash
- Builds a plain-text delivery snapshot you can copy or download
This plugin does not replace files, edit content, or change download permissions.
Coverage honesty
Uncovered sources (Elementor, Bricks, ACF fields, offload/CDN rewrites, menus, widgets, etc.) are labeled not covered. Zero hits inside coverage is never shown as a site-wide “no references” conclusion.
What this free version does not do
- Batch or scheduled scans
- Automatic replace / rollback
- Full-site cache purge promises
- Legal/compliance audit certificates
- Checkout, tax, security gateway, SEO, forms, or page-builder deep integration
Installation
- Upload the
aschere-pdf-reference-verifierfolder to/wp-content/plugins/ - Activate the plugin through the Plugins screen
- Open Tools Aschere PDF Reference Verifier
FAQ
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Does this replace file-replacement plugins?
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No. File-replacement plugins swap the file. This plugin verifies references and identity after a change (or before delivery).
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Can it scan ACF / Elementor?
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Not in the free version. Those locations are explicitly marked not covered.
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Is the public fetch safe?
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Fetches are limited to the same host as
home_url(), HTTP(S) only, short timeout. Failures are reported asunknown.
Reviews
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Contributors & Developers
“Aschere PDF Reference Verifier” is open source software. The following people have contributed to this plugin.
Contributors
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Interested in development?
Browse the code, check out the SVN repository, or subscribe to the development log by RSS.
Changelog
1.0.0
- Initial free release: single-PDF verify, core post/page scan, identity, optional same-site fetch, snapshot export.