or drop files here
Compress PDFs online for free while maintaining document quality. Reduce the size of your large files for easy sharing and storage in just a few clicks.
Compress your PDF effortlessly and instantly. Simply drag and drop your file, and our WebAssembly engine will automatically optimize it within seconds. Enjoy seamless online compression across all major platforms: Mac, Windows, Linux, iOS, and Android.
Select between High, Medium, Low, or an exact Custom KB/MB target size for the optimal balance. Reduce file size drastically without noticeable quality loss on screen or in print.
Your PDFs are processed 100% locally inside your browser memory using client-side WebAssembly, complying with strict GDPR privacy standards. Because your files are never uploaded to an external server, confidential documents stay completely private.
Balanced size & high visual quality
Smallest file size (up to -90%)
Compress PDFs directly in your browser—no installations, sign-ups, or learning curves. Just choose your file, compress, and be on your way.
Fr. Tools runs natively in any modern web browser, so you can reduce your PDF file size online from desktop, laptop, tablet, or smartphone.
Compress more than just PDFs. Use our free tool suite to reduce other file types, including JPG, PNG, WebP, GIF, and convert Word, PPT, and Excel.
We’re transparent about your data: because every PDF is compressed locally on your device, we never collect, store, or transmit your documents.
Pick High, Medium, or Low presets—or enter an exact KB/MB target budget. If a file is already optimal, we guarantee your output never grows larger.
Every compression level—including strong and custom-size compression—is unlocked for free with no daily limits and no watermarks.
The best free online workflow to compress large PDFs below strict 100 KB or 200 KB portal limits while maintaining file format and readability. No registration needed.
Need to shrink a PDF file down to less than 1 MB for email attachments or online submission? Let Fr. Tools optimize your pages in seconds!
Got a PDF file that’s too big? Here are three free techniques you can use to reduce your PDF size online through your browser on Windows or Mac.
Boost productivity with unlimited, 100% free access to all of Fr. Tools’ private browser-based PDF tools for taking the hassle out of document work. Do more, better, faster.