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Check PDF/A
Quick PDF/A report: identification, fonts, color profile, encryption, scripts, transparency and metadata.
Free, no uploads, no sign-up. Runs 100% in your browser.
How Check PDF/A works
pdf-lib reads the file structure and checks the PDF/A rules that most often fail. It is a heuristic check, not a certified validation.
Input: PDF.
How to use Check PDF/A
- Drop your PDF onto the Check PDF/A area, or click to choose it.
- Wait a moment while page thumbnails render locally.
- Choose the pages and options you need. Previews update as you go.
- Press the main action button and download the finished PDF.
Tips
- Encrypted PDFs must be unlocked first with Unlock PDF.
- Large scanned PDFs are mostly images. Compress PDF shrinks them the most.
- Your original file is never modified; you always download a new copy.
Check PDF/A FAQ
- Are my files uploaded?
- No. This tool runs entirely in your browser tab. Files are read from your disk into memory and the result is generated locally.
- Is it free? Are there limits or watermarks?
- Free and open source (MIT). There are no file-size caps, daily quotas, accounts or watermarks.
- Does it work offline?
- Yes, once the page (and any engine it needs) has loaded, it keeps working without a connection thanks to the service worker cache.
Related tools
- PDF to PDF/A: Convert to archival PDF/A-1b, 2b or 3b: color profile, XMP metadata, no scripts, with a strict image mode.
- PDF Inspector: See page sizes, fonts and whether they are embedded, images, scripts, version, encryption and word counts.
- Merge PDF: Combine multiple PDFs into one ordered document with drag-and-drop sorting.
- Split PDF: Split by ranges, every N pages, or extract each page into a ZIP.