Compress Image to 20MB
20MB is the practical ceiling for email-friendly high-resolution files. SizeSnap compresses your image to exactly 20MB for print-ready quality within sharing limits.
Target file size
20MB
Unlike TinyJPG or Squoosh, SizeSnap lets you specify the exact target size — not just “smaller.”
How to Compress an Image to 20MB
- 1
Upload your high-resolution photo or print file to SizeSnap.
- 2
Set the target to 20MB in the size input.
- 3
Press Compress — SizeSnap optimizes quality to land precisely at 20MB.
- 4
Download and email, upload to your print service, or deliver to clients.
Why Compress to 20MB?
Outlook and many corporate email servers cap individual attachments at 20MB, making this the largest file you can reliably email without using a file-sharing link. Print shops and online print services like Vistaprint, Moo, and Overnight Prints accept files up to 20MB for standard products like business cards, brochures, and posters. Professional photographers delivering high-resolution client files via email rather than gallery platforms need to hit exactly this ceiling to maximize quality. Medium-format camera exports from Fujifilm GFX and Hasselblad systems routinely exceed 30MB, and compressing to 20MB retains virtually all visible detail while making the files email-compatible.
Tips for Compressing to 20MB
For email attachments, verify your recipient's server limit — most corporate Exchange and Gmail accounts accept 20MB, but some older systems cap at 10MB.
Print files at 20MB are sufficient for most standard-size prints up to 24x36 inches at 150 DPI.
If you need to email multiple large images, compress each to 20MB and send in separate emails rather than one ZIP attachment.
Frequently Asked Questions
- Is compressing to 20MB free?
- Yes, SizeSnap is free for up to 3 compressions per day. No account needed.
- Does SizeSnap work on mobile?
- Yes, SizeSnap runs entirely in your browser and works on any device — iPhone, Android, tablet, or desktop.
- Will my image lose quality when compressed to 20MB?
- SizeSnap uses smart compression that minimizes visible quality loss. For 20MB, virtually no quality loss — this is a generous target that preserves fine detail.
- What image formats are supported?
- SizeSnap supports JPEG, PNG, WebP, and HEIC images. All formats can be compressed to exactly 20MB.