PDF Preflight & Compatibility Checker.
Inspect a PDF before sharing or processing it without uploading the document or exporting private metadata values. Measure PDF structure, page geometry, fonts, images, encryption and metadata presence locally, separating hard evidence from bounded compatibility warnings.
- ✓Runs in your browser
- ✓No account required
- ✓Verified output
Use PDF Preflight & Compatibility Checker
Private in this browser. The PDF stays in this browser; document bytes and metadata values are not sent or included in the export.
No file selected.
Verified result
Download resultHow it works
- 01
Choose one PDF up to 25 MB.
- 02
Run the bounded worker inspection of structure and sampled page geometry.
- 03
Review measured facts, separate recommendations and a sanitized independently verified report.
Frequently asked questions
Does this certify my PDF?
No. It separates measured facts from heuristic warnings and never promises upload or print acceptance.
Are title and author exported?
No. The report lists only which metadata fields are populated, never their values.
Does PDF Preflight & Compatibility Checker upload my data?
PDF Preflight & Compatibility Checker runs locally in your browser. The PDF stays in this browser; document bytes and metadata values are not sent or included in the export.