How to compress a PDF
- Drop your PDF into the box above.
- Choose a compression level. “Recommended” works well for most documents.
- Click Compress PDF, check the new size and download it.
How this compressor works
Each page is re-rendered as an optimized image and packed into a new PDF. This shrinks scanned documents and photo-heavy files dramatically. The trade-off: text in the compressed file is no longer selectable or searchable. If a PDF is mostly text and the result would be larger, we tell you and you can keep your original.
Frequently asked questions
Are my PDF files uploaded to a server?
No. Your PDFs are processed entirely inside your browser and never leave your device — ideal for contracts, invoices and other confidential documents.
Which PDFs compress best?
Scanned documents, PDFs made from phone photos, and presentations with many images. Text-only PDFs are usually small already.
Will text still be selectable?
No — pages are converted to images, so text becomes part of the image. Keep the original if you need to search or copy text.
How small will my PDF get?
Scanned PDFs often shrink by 50–90% on the Recommended setting. The result is shown before you download.
Is there a file size limit?
There is no fixed limit because nothing is uploaded. Very large files (hundreds of MB) depend on your device’s memory; a desktop browser handles them best.