Guide · Intent
How to compress a PDF for WhatsApp (16 MB)
WhatsApp is not Gmail. A 20 MB scan that attaches in email still fails in chat. ChargeBite targets 16 MB — the size that still sends as a document on typical clients — then deletes the upload.
Updated 2026-09-08
Why 16 MB
WhatsApp’s document limit has moved over the years. 16 MB is still the conservative cap that works on older phones, desktop, and forwarded chats. If your PDF is already smaller, we return it as-is.
Step-by-step
- Open Compress PDF for WhatsApp.
- Drop the scan the chat rejected.
- Wait for the 16 MB target. Image-heavy scans shrink the most.
- Download and send as a document — not as a photo of the page.
Still too big?
Drop extra pages with Organize PDFor hit a portal cap with Compress PDF to 300 KB.
FAQ
What size PDF does WhatsApp accept?
Many WhatsApp clients still refuse documents much above 16 MB. Newer apps can send larger files, but 16 MB is the size that reliably sends as a document on phones and desktop.
Is this the same as Gmail’s 25 MB cap?
No. Gmail is 25 MB per message (tighter after encoding). WhatsApp’s practical document cap is lower. Use the WhatsApp landing so we target 16 MB instead of 25 MB.
Do you keep the PDF?
No. The file is uploaded over HTTPS, compressed, returned, and deleted.