Compress PDF for WhatsApp — Free & Private
WhatsApp allows PDF attachments up to 100MB, but large files can be slow to send and even slower to open on mobile. Compressing your PDF before sending makes it faster to share and easier for the recipient to open. Our tool compresses your PDF entirely in your browser — nothing is uploaded anywhere.
Recommended setting: Balanced — Use the Balanced setting for WhatsApp. It reduces file size by 50–70% while keeping the PDF looking sharp on a phone screen.
Drop your PDF here or click to browse
PDF files only · Any size
🔒 100% Private
Your PDF never leaves your device. All compression happens in your browser.
Frequently Asked Questions
What is the PDF size limit for WhatsApp?
WhatsApp allows PDF attachments up to 100MB. If your file is over that limit, you need to compress it or split it before sending.
Will the compressed PDF open correctly on WhatsApp?
Yes. The compressed PDF is a standard PDF file that opens in any PDF viewer on iOS, Android, or desktop — including WhatsApp's built-in viewer.
How much can I reduce my PDF size for WhatsApp?
Using the Balanced setting, most PDFs compress by 50–70%. A 10MB PDF typically becomes 3–5MB — much faster to send and receive on mobile.
Does compression affect the quality when viewed on WhatsApp?
On a phone screen, Balanced compression is visually identical to the original. You would need to zoom in significantly to notice any softening.
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