Free online PDF tool
Compress a PDF locally in your browser
Reduce the size of a PDF before emailing it, sharing it or submitting it to an online portal. PdfWiseAI offers several compression levels so you can balance file size and visual quality according to the document.
Use Compress PDFHow it helps
A straightforward way to work with your document
Compression is useful for scanned forms, image-heavy reports and attachments that exceed a mailbox or application limit. The transformation runs in your browser, which avoids transferring the original file to an external compression service.
Your PDF stays on your device during compression. There is no sign-up, no server upload for this operation and no copy of the output is retained by PdfWiseAI.
Three simple steps
How to use Compress PDF
- 1
Choose a PDF file.
- 2
Select light, recommended or strong compression.
- 3
Download the smaller PDF.
Frequently asked questions
Compress PDF FAQ
Will compression reduce quality?
Stronger settings may reduce image quality more. Start with the recommended level for a balanced result.
Is my PDF uploaded?
No. Compression is performed locally in the browser.
Is there a registration requirement?
No account or email address is required.