PDFalo
Compress PDF
Reduce the size of a large PDF so it is easy to email or upload. Your file stays on your device.
- 100% private
- Free forever
- No sign-up
Drop a PDF file here
or
Note: compressing turns each page into an image, so text can no longer be selected or searched.
Your file is ready
DownloadHow it works
- Select or drop one PDF file.
- Pick a compression level.
- Click Compress PDF and download the smaller file.
Free, fast and private
Everything runs inside your browser. Your files are never uploaded to a server, and there is no sign-up or watermark.
Frequently asked questions
Why can I not select text after compressing?
To shrink the file, each page is saved as an image. This works best for scans and photo-heavy PDFs.
Which level should I choose?
Start with Medium. Use Strong if the file is still too big, or Light if quality matters most.
Why did it say my PDF is already small?
If the result would not be smaller than the original, we do not offer it. Keep the original or try Strong.