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Compress PDF Online Free — Reduce Size for Email & Portals
Shrink large PDF files to under 25MB for Gmail, Outlook, and official portal uploads.
PDF files containing scanned documents, certificates, and images can easily grow to 50MB or more. However, most email clients and official submission portals have strict file size limits. For example, Gmail and Outlook have a 25MB attachment limit, and government portals often require PDFs to be under 2MB or 5MB. Our PDF Compressor runs entirely in your browser, shrinking your files using smart optimization without making the text blurry or unreadable.
Official PDF Upload Limits for Common Portals
Before sending or uploading your documents, check these common limits:
- Gmail / Outlook: Maximum attachment size is 25MB. Anything larger is uploaded to Google Drive/OneDrive as a link instead of a file.
- Income Tax Portal (India): Most PDF uploads must be under 5MB.
- EPFO Portal: Document uploads are usually restricted to 2MB or less.
- Visa & Immigration Portals: Often restrict document uploads to 2MB per PDF.
How to Compress a PDF to Fit Email Limits
To reduce your PDF file size:
Step 11
Upload: Select the PDF file from your device.Step 22
Set Compression: Choose a compression level. "Recommended Compression" offers the best balance of size reduction and legibility.Step 33
Process: Click "Compress PDF". The tool will optimize fonts, compress images, and remove unused metadata.Step 44
Download: Preview the new file size and download your compressed PDF.