Compress a PDF online
Compress a PDF online to reduce its file size, with nothing to install. Free and private. Tool is being set up.
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Files are processed in your browser — they never leave your device.
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Compress a PDF online
Compressing a PDF online means there is nothing to install and no desktop app to license — you open this page in any browser, add your file, and get a smaller version back. Reducing file size makes a PDF faster to email, quicker to upload to a form, and lighter to store, which is why an online compressor is handy when you are away from your own computer or on a managed machine where you cannot install software. The amount of reduction depends on the file: PDFs built from images and scans shrink the most because their embedded pictures can be downsampled, while text-only documents are already compact and change less. For high-resolution work that must stay print-perfect, keep the compression light. Files sent for online compression are handled under our strict privacy promise — encrypted in transit, never logged, and automatically deleted within about an hour, so nothing of yours is retained.
Frequently asked questions
- Do I need to install anything to compress online?
- No. It runs in the browser, so there is nothing to download — useful on work or shared computers.
- How much smaller will my PDF get?
- It depends on the content. Image- and scan-heavy PDFs shrink the most; text-only files are already small and change less.