About the Compress PDF
Email attachments and upload forms often reject large PDFs. This tool shrinks PDFs by re-rendering every page as an optimised image, which works especially well for scanned documents, photos and image-heavy files — often cutting the size by 50–90%.
Because pages are converted to images, text in the compressed PDF can no longer be selected or searched. Keep your original if you need that. Everything happens inside your browser. Your PDF is never uploaded to a server, so confidential documents stay private.
How to use the Compress PDF
- Choose a PDF file.
- Pick a compression level: Strong for the smallest file, Recommended for a balance, or Light for the best quality.
- Click “Compress PDF” and wait while each page is processed.
- Compare the sizes and download the compressed PDF.
Frequently asked questions
Which compression level should I choose?
“Recommended” suits most documents. Use “Strong” when you must get under a strict size limit and “Light” for documents with small print or detailed images.
Why can I no longer select text?
To reduce the size, each page is turned into a compressed image. That makes the text part of the picture. It is ideal for scans, but keep the original if you need searchable text.
Why did my PDF not get smaller?
Text-only PDFs created by Word or similar programs are usually already tiny. Converting them to images can make them larger, so the tool tells you to keep the original in that case.