WhatsApp allows PDF file sharing up to 100 MB. If your PDF exceeds this or is slow to send on mobile data, compressing it first improves delivery speed and reduces data usage.
Open the compressor in Chrome (Android) or Safari (iPhone). Upload your PDF. Select Good compression for most documents. Tap Compress Now.
Tip: Most PDFs compress to under 10 MB on Good settings — well within WhatsApp's 100 MB limit and much faster to send on mobile data.
After downloading the compressed PDF, open WhatsApp. In any chat, tap the attachment icon → Document → select the compressed PDF from your Files or Downloads.
WhatsApp allows documents up to 100 MB. For fast delivery on mobile data, keeping PDFs under 10 MB is recommended.
Yes — completely free at pdfeditor.onl/compress-pdf.