Bypass Email Attachment Size Limits Without Losing Readability
Most email providers (Gmail, Outlook, Yahoo) strictly bounce email messages with attachments exceeding 20MB or 25MB. Learn how PDFMill shrinks your file locally in seconds.
or drag and drop your document here
The Privacy Challenge
When emailing contracts, scanned records, or presentation decks, high-resolution scans and uncompressed images routinely create files of 30MB to 70MB. Sending links to cloud drives often gets blocked by enterprise spam filters or requires recipient account sign-in.
How PDFMill Solves This With Zero Data Egress
Bicubic downsampling renders oversized 300+ DPI images to email-friendly 130 DPI screen standards.
Object stream dictionary packing strips redundant PDF metadata and structural overhead.
Zero server uploads ensure sensitive financial or employment documents remain strictly confidential on your computer.
Step-by-Step Instructions
Upload Document
Select or drag your oversized PDF into PDFMill's client-side dropzone.
Select 'Recommended' or 'Extreme' Compression
Choose 'Recommended' for general documents (reduces size by 50-70%), or 'Extreme' for files larger than 50MB to force them under 10MB.
Download and Attach
Download your compressed PDF instantly and attach it directly to your email draft.
Frequently Asked Questions
What is the maximum attachment size for Gmail and Outlook?
Gmail limits attachments to 25MB (including encoding overhead, so effectively ~20MB). Outlook and Exchange typically limit attachments to 20MB or 25MB.
Will the recipient be able to read small text and tables?
Yes. Our compression algorithm specifically targets high-resolution raster image streams while preserving vector font outlines and typographical clarity.