See a PDF's version, fonts, images, encryption and structure. Everything runs locally in your browser - your files are never uploaded to a server, no registration is required, and the tool is completely free.
How to PDF Inspector
Choose a PDF - it is read on your device and never uploaded.
Start with Overview for the warnings (non-embedded fonts, JavaScript, contradictory standards claims) and the document information.
Open Version & compliance, Pages, Fonts, Images and Attachments for the details, or browse the raw objects under Objects.
Click Export JSON to save the full report.
Features
Printer-ready font check: Every font on every page, with its type and whether it is embedded or subset. Non-embedded fonts are flagged, because printers and other computers will substitute them.
Version and standards claims: The %PDF header version, the catalog /Version override, and any PDF/A, PDF/UA or PDF/X claim in the XMP metadata. Claims are clearly labelled as claimed, not validated.
Encryption and permissions: Shows whether the file is encrypted, which algorithm it uses (RC4, AES-128 or AES-256), and the print, copy and edit permissions it declares.
Raw object browser: Expand the catalog, page tree and resource dictionaries one level at a time, see every key and value, jump to an object by number, and see stored stream lengths.
Frequently asked questions
Does this validate PDF/A or PDF/UA?
No. It reads what the file claims about itself in its XMP metadata, and flags only clear contradictions - for example, PDF/A claimed on an encrypted file, or with fonts that are not embedded. Real conformance checking needs a dedicated validator such as veraPDF.
Why does it warn about non-embedded fonts?
A non-embedded font is not included in the PDF. Whoever opens or prints the file gets a substitute font, so text can reflow or look different. Most print shops require every font to be embedded.
Can it inspect a password-protected PDF?
Partly. The encryption details and some of the structure can be read without the password. For the full report, including metadata and fonts, enter the password. The file stays on your device.
Is my PDF uploaded?
No. The file is parsed in your browser with pdf-lib, and the report is built on your device.