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Tool location: /pdf/compress
PDF compression reduces the file size of your documents while preserving as much quality as possible. This is essential for sharing files via email (which often has attachment size limits), uploading to websites, or simply saving storage space. Our tool processes everything in your browser, ensuring your sensitive documents never leave your computer.
Click the "Select PDF File" button or drag and drop your PDF file directly into the upload area. You can also paste a file from your clipboard.
Select the compression level that best suits your needs. Each level offers a different balance between file size and quality:
Click the "Compress" button to begin the compression process. You will see a progress indicator showing the current status. The processing time depends on your file size and the number of images in the PDF.
Once compression is complete, you will see detailed statistics about the compression:
Click the "Download" button to save your compressed PDF file. The file will be saved with "_compressed" added to the original filename.
All compression happens in your browser. Your files are never uploaded to any server, ensuring complete privacy.
Choose from three compression levels to find the perfect balance between file size and document quality.
Preview your compressed PDF before downloading to ensure the quality meets your expectations.
See exactly how much space you saved with detailed before/after file size comparison.
Since processing happens locally, there is no maximum file size limit. Compress files of any size.
Use the tool as many times as you need. No registration, no watermarks, no hidden fees.
Compression is a one-way process. Always keep a backup of your original file if you might need the full quality later.
Heavily compressed PDFs may show visible quality loss in images and graphics.
Password-protected PDFs need to be unlocked before compression.
A: The compression ratio varies depending on the content. PDFs with many images can often be reduced by 50-90%. Documents that are mostly text may only see a 10-30% reduction since text is already quite compact.
A: No, text in PDFs is stored as vector data and remains crisp regardless of compression level. Only embedded images are affected by compression.
A: You will need to remove the password protection first. Our tool will notify you if a PDF is password-protected and cannot be processed.
A: No, there is no limit. You can compress as many files as you need, completely free of charge.
A: Absolutely. All processing happens entirely in your web browser. Your files are never uploaded to any server, and no data is stored or transmitted.
A: If your PDF contains mostly text or has already been compressed, further compression may not yield significant results. PDFs with high-resolution images will see the most dramatic size reductions.