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Reduce your PDF file size below 25MB so it fits email attachment limits. Free, private, works in your browser.
You need to send a PDF by email, but Gmail, Outlook, and most providers reject attachments over 25MB. Scanning documents, presentations with images, and design proofs regularly exceed that limit. Splitting the file into parts is awkward for the recipient, and cloud-link workarounds feel unprofessional.
Our PDF compressor shrinks files right inside your browser. Drop your oversized PDF in, pick a target quality, and download a version that slips under the 25MB ceiling. Nothing is uploaded to a server, so confidential contracts and financial statements stay private. You can compress multiple files in a row without creating an account.
Open Compress PDFNavigate to the Compress PDF tool on OnlineTools4Free.
Drag and drop your PDF or click to browse. There is no file-size upload limit because processing happens locally.
Select low, medium, or high compression. Medium is usually enough to get under 25MB while keeping text sharp.
Hit "Compress" and save the smaller PDF. Check the new size in the result panel.
Add the compressed PDF to your email. Done.
No signup, no upload, 100% private. Works right in your browser.
Open Compress PDF