Compress Image for USPS

Updated February 2026 · 4 min read

Uploading images to USPS Click-N-Ship, ordering personalized stamps, or submitting through USPS.com — each has specific file size and format requirements. Here is what you need to know.

USPS Image Requirements by Use Case

USPS Use Case	Max File Size	Format
Personalized Stamps	2MB	JPEG / PNG
Click-N-Ship Label	1MB	JPEG / PNG
USPS.com Account Photo	1MB	JPEG / PNG
USPS Business Portal	500KB	JPEG
Informed Delivery images	200KB	JPEG / PNG

How to Compress Your Image for USPS

1
Open CompressTo20KB
Free — no account needed.
2
Upload your image
Drop JPEG or PNG. All processing in your browser.
3
Set your target size
Exact KB Mode: stamps → 1000KB, business portals → 500KB, Informed Delivery → 200KB.
4
Download and upload to USPS
Done in seconds.

FAQ

What image format does USPS accept?

JPEG and PNG. JPEG recommended for photos.

What is the maximum file size for USPS image uploads?

Personalized stamps: under 2MB. Click-N-Ship and other portals: under 1MB.

How do I compress an image for USPS for free?

Use CompressTo20KB — Exact KB Mode, type your target. Compressed in browser, no upload.

Compress Your USPS Image Free

Set any exact KB target. No upload. Works on all devices.

Compress Image Free →