Free PDF Tool · Info

PDF File Size Checker

Run pdf file size checker in your browser. Free, private, no signup — your selected files are processed in your browser and are not uploaded to our server.

↑

Drop your file here

or click to browse from your device

Accepts: .PDF

About this PDF File Size Checker

Inspect a PDF file with our pdf file size checker tool. We read the file size and page count, with an optional control to show page dimensions.

Your privacy is the default. Your selected files are processed in your browser and are not uploaded to our server; all processing happens client-side using pdf-lib. Closing the tab clears the working session from this page; downloaded files remain on your device.

This tool is free to use with no signup required. Large files may be limited by your browser’s memory and device performance. Part of PDF Tools Base, a privacy-first collection of 161 PDF utilities. Bookmark the page for next time, and explore related tools in the footer below.

How to use the PDF File Size Checker tool

  1. Drop your PDF.
  2. Click Process. File size, page count, and dimensions are shown.
  3. Download the info report.

Why use PDF Tools Base?

100% Browser-Based

PDF File Size Checker processes selected files in your browser. Your selected files are processed in your browser and are not uploaded to our server.

No Server Upload, No Signup

Your selected files are processed locally in your browser. No account, no server upload, no email needed.

No Watermark Ever

Outputs are clean. We never stamp our brand or a paywall watermark on your files.

Free to Use

No accounts and no signup. Use the tool as much as you need within reasonable browser limits.

Works on Every Device

Windows, Mac, Linux, iPhone, iPad, Android, Chromebook. Any modern browser.

Built on Open Source

Powered by pdf-lib for browser-side PDF metadata and structure reading.

Common uses for pdf file size checker

Pre-submission check

See size, pages, dimensions at a glance.

Troubleshooting

Spot oversized or oddly-sized PDFs.

Cataloguing

Quick metadata for an archive.

Frequently asked questions

Is PDF File Size Checker safe to use?

Yes. Everything happens in your browser. Your selected files are processed in your browser and are not uploaded to our server. Closing the tab clears the working session from this page; downloaded outputs remain on your device until you delete them.

Do I need to register or sign in?

No. No account, no email, no sign-up. Open the page and start using the tool immediately. Free to use, no signup needed.

Is there a watermark on the output?

No. PDF Tools Base never adds a watermark or branding to your output. Your final file is clean — just what you produced from the original.

Is there a file size limit?

Phones may struggle with PDFs over 50–100MB; desktops may handle larger PDFs but can still fail on very large or complex files. Large PDFs may be slow or fail depending on browser memory, page count, render mode, and PDF complexity.

Does this work on mobile devices?

Yes. The tool works on all modern mobile browsers: Chrome on Android, Safari on iOS, Firefox, Edge, Brave. The drag-and-drop also accepts files from your phone’s file manager.