Analyze PDFs Instantly from Your Browser
The free PDFCheck Chrome extension lets you check PDF metadata, look for AI-generator indicators and run basic validation checks without leaving the page you are on.
Drop a PDF here or browse
Free: up to 50 MB per PDF. Pro and AI: up to 100 MB per PDF.
Everything You Need, One Click Away
Powerful PDF analysis tools integrated directly into your browser workflow.
Metadata Analysis
View title, author, creator, producer, creation date, modification date, PDF version, and page count — all in seconds.
AI-Generator Indicators
Check PDF metadata for software often used by AI tools and document generators. Indicators only, not proof.
Verification Checks
Quick pass/fail checks on PDF integrity, structure, and metadata completeness — at a glance.
Drag & Drop
Simply drag a PDF file onto the extension popup or use the file picker. No copying, no uploads to random sites.
Free to Use
Without an account, the extension gets 10 checks a day. Add the API token from a free account to get 100 checks a day, the same allowance as the Free plan on the website.
Privacy First
Your PDFs are sent to PDFCheck over HTTPS. The original checker upload is not retained after the request; extracted metadata and result records follow our Privacy Policy.
How It Works
Install the Extension
Add the PDFCheck extension to your browser from the Chrome Web Store.
Drop a PDF
Click the PDFCheck icon in your toolbar, then drag and drop a PDF file or use the file picker to select one.
Get Results
View metadata, AI-generator indicators and verification checks. Click "View full report" for the complete analysis.
Installation Guide
Get started in under a minute. Available for Chrome, Edge, Brave, and other Chromium browsers.
Open the Chrome Web Store listing
Open PDFCheck in the Chrome Web Store and click "Add to Chrome".
Confirm the installation
Chrome lists the permissions the extension asks for. Click "Add extension" to finish.
Pin it to your toolbar
Open the extensions menu (the puzzle-piece icon) and pin PDFCheck so its icon stays in the toolbar.
Configure your API token (optional)
Click the gear icon in the extension popup to open settings. Paste your API token to raise the allowance from 10 to 100 checks a day. You can create a free token on your account page.
Free & Generous Limits
Start analyzing PDFs immediately — no credit card required.
- Full metadata analysis
- AI-generator indicators included
- No registration required
- Everything in free tier
- 10x more daily checks
- Analysis history & sharing
Frequently Asked Questions
Yes. Without an account, the extension gets 10 PDF checks a day. Add the API token from a free account to get 100 checks a day.
No. The extension only activates when you click its icon and upload a PDF. It does not track your browsing, read your tabs, or collect any data in the background.
The PDF is sent to the PDFCheck API over HTTPS. The original checker upload is not retained after the request, while extracted metadata and result records follow our Privacy Policy.
Yes! The extension works on any Chromium-based browser, including Google Chrome, Microsoft Edge, Brave, Vivaldi, and Opera.
Free: up to 50 MB per PDF. Pro and AI: up to 100 MB per PDF.
Create a free account at pdfcheck.online, then go to your account settings to generate an API token. Paste it in the extension settings.
Ready to Analyze PDFs Faster?
Install the PDFCheck Chrome extension to check PDF metadata, look for AI-generator indicators and validate files from your browser toolbar.