Compress a PDF without uploading it
This tool rebuilds each page as a JPEG inside a new PDF, so photo-heavy files get much smaller. A PDF that is already mostly text may not shrink, and the text in the new file may not stay selectable. For a form that asks for a PDF under a set size, use compress PDF to a specific size.
A locked PDF has to be opened with the password you already know in Unlock PDF before it can be compressed. Scanned pages stay images. This is not the same as Adobe’s compress, which can keep live text.
Frequently asked questions
No. The PDF is compressed in your browser and stays on your device.
Often no. Pages are saved as images so the file can get smaller. Copy the original if you still need to select the text.
A short text PDF is already small. Rebuilding it as images can make it larger. Photo and scan PDFs shrink the most. Try the Smaller file setting, or set a target with compress PDF to a specific size.