Compress PDF
Shrink your PDF right in the browser — lossless structure cleanup, or strong image-based compression with a quality choice.
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Compress PDF Files Online — Free, No Upload
PDFs balloon in size fast — especially when they contain images, embedded fonts, or scanned pages. Email attachment limits, upload forms, and storage constraints make large PDFs a constant headache.
PeacefulPDF's compression tool reduces your PDF file size directly in your browser. No uploading to external servers. The tool re-saves your PDF, stripping out unused objects and redundant data. It's basic compression, but it works well for PDFs that have been through multiple edits or exports.
For PDFs with lots of high-resolution images, the savings can be significant. For already-optimized files, the reduction might be modest. Either way, your file never leaves your computer — which matters when you're compressing financial documents, medical records, or legal paperwork.
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FAQ
How much will my PDF shrink?
Lossless mode typically saves 5-30% by rebuilding the file structure. The Balanced and Strong levels re-render pages as compressed images and can shrink image-heavy or scanned PDFs by 50-90%.
Does compression reduce quality?
Lossless mode never touches quality and keeps text selectable. Balanced and Strong re-render each page as a JPEG — visually fine for reading and email, but text can no longer be selected or copied, so keep the original for editing.
Is my compressed file uploaded anywhere?
No. Everything happens in your browser. The compressed file is generated locally and downloaded directly to your device.
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