Reduce the size of your PDF files with our free online compressor. Our tool optimizes PDFs for smaller size while maintaining quality, all securely in your browser.
No uploads needed. Your PDF is compressed directly on your device, ensuring maximum privacy and security for your documents.
Just upload your file, click one button, and download the result. It's the simplest way to make your PDFs smaller.
Smaller PDFs are easier and faster to email, upload, or share with others. Compress your files before sending them to save time and bandwidth.
1
Select the PDF file you want to reduce in size.
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Click the 'Compress PDF' button to start the optimization process.
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See the original and new file sizes. Click 'Download' to save your smaller, compressed PDF.
This tool runs entirely in your browser. We do not upload, store, or analyze your files. Everything you process stays on your device. Period.
PDF Compressor is most useful when it sits inside a small repeatable workflow: prepare the source, make the change, then check the output before sharing it.
Use PDF Compressor for this job: Reduce the size of your PDF files with our free online compressor. Our tool optimizes PDFs for smaller size while maintaining quality, all securely in your browser. It keeps the task in the browser without moving the work into a heavier desktop app.
Preview the result, compare it with the original, and repeat the settings until the file is ready for a real project.
For adjacent tasks, stay inside the pdf & document tools collection instead of opening another service.
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Our tool runs directly in your browser. It rewrites and optimizes the PDF's internal structure locally on your computer. Your file is never sent to a server.
The reduction amount varies greatly depending on the original PDF. Documents with redundant data or inefficient structures will see significant savings. However, already optimized PDFs may see little change.
Our basic compression method primarily removes unused objects and optimizes the document structure. It does not re-compress images or alter visible content, so the quality should remain largely unchanged.