PDF Version Checker
Find which PDF specification version a file declares, and what that implies.
Fill in the form and press “Check version” to see the result here.
How to use it
- 1Select your PDF, or drag and drop it onto the upload area.
- 2Adjust the options if you need something other than the defaults.
- 3Press the button. The document is processed on your device - nothing is uploaded.
- 4Download the result. Your original file is untouched.
About the PDF Version Checker
The version is declared in the first line of the file. Each one added features: 1.4 brought transparency, 1.5 brought object streams, 1.6 brought AES encryption, 1.7 became the ISO standard.
It is a claim about which features may appear, not a guarantee. Some producers write a conservative version while using newer features, which is why an old reader can still fail on a file that claims to be compatible.
Questions people ask
Is my PDF uploaded to a server?
No. The document is read and rewritten by JavaScript in your own browser. Nothing is transmitted, which is the only sensible arrangement for contracts, invoices, medical records and anything else people put in a PDF.
Is your document uploaded to a server?
No. This tool runs entirely in your browser using standard web APIs, so your document never leaves your device. You can confirm it by opening your browser's network panel while the tool runs, or by disconnecting from the internet after the page has loaded.
Is it free, and do I need an account?
Yes, it is free, and there is no account, no sign-up and no watermark on the result. The project is funded by optional donations.