Hidden Content Finder
Scan a PDF for text or objects that exist in the document but may not be normally visible.
Drag and drop a file here, or browse
PDF — up to 50.0MB
Uploading...
- Single file input
- Long-running / async
- Hidden content finder workspace
Scans a PDF's pages and structure for content that may not be normally visible - text positioned off-page, invisible or near-invisible text, unusually tiny text, a searchable text layer under a scanned image, and text that appears to be covered by another object. This is a forensic inspection tool only - it never modifies, redacts, or sanitizes the source PDF.
Simple workflow
How it works
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1
Upload
Add a PDF - every page is inspected for hidden or suspicious content.
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2
Review
Click a finding to jump to its exact page and location.
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3
Report
Download a findings report - the source PDF is never changed.
Frequently asked questions
Does this tool remove or redact the hidden content it finds?
No. It only detects and reports possible hidden content in a findings report and preview - the source PDF is never modified, redacted, or sanitized. Use a separate DocForensic tool for removal.
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