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PDF Inspector
See page sizes, fonts and whether they are embedded, images, scripts, version, encryption and word counts.
Free, no uploads, no sign-up. Runs 100% in your browser.
How PDF Inspector works
pdf-lib walks every object to list fonts, images, actions, forms and metadata. PDF.js reads the text to count words, characters and lines per page.
Input: PDF. Output: JSON.
How to use PDF Inspector
- Drop your PDF onto the PDF Inspector 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.
PDF Inspector 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 Metadata: View and edit title, author, subject, keywords and dates.
- Check PDF/A: Quick PDF/A report: identification, fonts, color profile, encryption, scripts, transparency and metadata.
- PDF Accessibility Checker: Check tags, alt text, language, title, headings, table headers, tab order and real text.
- Word Counter: Words, characters, sentences, reading time and keyword density.