Reduce your PDF file size while preserving visual quality. Choose your compression level — all processing happens in your browser.
or browse files · up to 50MB
🔒 Files are processed locally — nothing is uploaded
Compressing...
Everything you need to fix, edit, and manage your PDFs.
Combine multiple PDF files into one.
Extract specific pages from any PDF.
Fix sideways or upside-down pages.
Remove unwanted pages from any PDF.
Change the page order of any PDF.
Convert PDF pages to PNG images.
Convert images into a PDF document.
Add page numbers to every page.
Stamp text across every page.
Pull all images out of a PDF.
Compare two PDFs side by side.
Reduce your PDF file size.
Add password protection.
Remove password protection.
Convert PDF to editable Word doc.
Convert Word docs to PDF.
Add your signature to any PDF.
Large PDF files are slow to email, upload, and share. Our compression tool reduces your PDF file size while preserving as much quality as possible. It works especially well on PDFs with embedded images, scanned documents, and files generated by design software.
Upload your PDF and click "Compress." Our tool uses two strategies — structural optimization (removing unused metadata and objects) and image re-compression — then picks whichever produces the smallest file. If your PDF is already well-optimized and can't be made smaller, we'll tell you.
All compression happens in your browser. Your files are never uploaded to a server. This makes it safe for confidential documents like contracts, financial statements, and medical records.
Most online PDF tools — including iLovePDF, SmallPDF, and Adobe Acrobat online — upload your files to their servers for processing. That means your contracts, tax documents, medical records, and confidential business files pass through a third party's infrastructure. FixMyPDF.ai is different: every tool runs entirely in your web browser using client-side JavaScript. Your files are never uploaded, never stored on a server, and never accessible to anyone but you. There is no backend server processing your documents — it all happens on your device.
How much smaller will my PDF get? It depends on the content. Image-heavy PDFs can shrink 50-80%. Text-only PDFs that are already optimized may only shrink 5-15%.
Will compression affect text quality? Structural optimization preserves text perfectly. Image re-compression may slightly reduce image sharpness at maximum compression.
Can I compress a file that's already compressed? You can try, but if the file is already well-optimized, our tool will let you know that no further reduction is possible.