Frequently asked questions
What is WhatsApp's PDF size limit?
WhatsApp allows document attachments up to 100 MB. However, some older app versions and certain regional servers may apply a stricter 16 MB limit.
My PDF is a scanned document - will compression work well?
Yes. Scanned PDFs are almost entirely images and compress very well. The Compact mode can reduce a scanned PDF by 50–80% while keeping it readable.