Free · runs in your browser · never uploaded
Check a PDF for hidden text
Short answer
Hidden text (white ink, tiny fonts, off-page text) and fake redactions leave content searchable and copyable. Use the privacy checker below for a 0–100 score covering hidden text, covered text, PII, metadata, attachments, and scripts — entirely local.
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How it works
- 1
Drop your PDF into the privacy checker above — it stays in your browser.
- 2
Read the 0–100 privacy score and each checklist category.
- 3
Use the fix links (Redact, Auto-redact, Deep Clean, Confidential Send), then re-check before sharing.
Files never leave your device
Your PDF is processed in this browser tab. Files never leave your device, and mypdf.space does not receive uploads. No account, no watermark, no server-side copy.
Limits worth knowing
- Best-effort detection — always proofread before sharing.
- Scanned pages without OCR will not surface text-layer PII.
- Fix tools (Redact, Deep Clean) are separate steps after the report.
Frequently asked questions
What counts as hidden text in a PDF?
Text that is invisible or hard to see on screen but still in the file — white-on-white, very small fonts, clipped off the page, or sitting under black boxes.Does this upload my PDF?
No. The checker runs in your browser tab.How do I remove hidden text after it is found?
Rebuild affected pages with Redact, then Deep Clean metadata/attachments, or run Confidential Send. Re-check before sharing.
Written by Sumit · Last updated 23 Oct 2026