Compress a PDF
Try lossless optimization first, which keeps text and quality. For scanned or image-heavy files, strong compression can shrink the file much more.
How to use Compress PDF
- Select your PDF.
- Choose lossless optimization or strong compression.
- Click Compress PDF. If the file gets smaller, download it.
Frequently asked questions
How much smaller will my file be?
It depends on the file. Lossless optimization often saves little because many PDFs are already compressed. Strong compression can save a lot on scanned documents.
What does strong compression change?
It rebuilds each page as a picture, so text can no longer be selected or searched, and links and form fields are lost. Always check the result.
What if the file does not get smaller?
You will be told, and no larger file is offered for download.
Are my files uploaded to your server?
No. This tool runs in your browser using JavaScript that is served from this website. Your file is read on your own device and the result is created there too. File contents are not sent to this website.
Results may differ slightly from the original file. Always check the output before using it.