Image Guides & Tutorials
Everything you need to resize, compress, convert, and optimize images — written for humans, not algorithms.
How to Resize an Image Without Losing Quality
Learn the best techniques to resize images while preserving sharpness and detail.
Explainers
6 guidesWhy Photos Lose Quality When You Send Them on WhatsApp
WhatsApp re-encodes every photo you send — and there is a way to bypass it entirely.
Why Your iPhone Photo Is Sideways on Windows But Fine on Your Phone
One number in the file's metadata explains a whole family of rotation bugs.
Why Your PNG Is Ten Times Bigger Than the Same Photo as a JPG
The two formats are not competing — they are solving completely different problems.
Why Does Every Government Form Want a Photo Under 100KB?
Storage economics, slow connections, and specifications copied between institutions.
Screenshots and Photos Need Opposite Treatment
Almost every rule about formats and compression reverses depending on which you have.
What Actually Happens to Your Photo After You Press Upload
It is decoded, stripped, resized and re-encoded several times before anyone sees it.
Resizing
3 guidesHow to Resize a Photo to Email It
How Gmail, Outlook, and iPhone Mail handle image size — and how to shrink a photo before you attach it.
How to Resize an Image to a Specific File Size (100KB, 200KB, 1MB)
Step-by-step guide to hitting an exact file size target for uploads and submissions.
How to Bulk Resize Multiple Images at Once
Save time by resizing dozens of images to the same dimensions in a single step.
Compression
1 guideSocial Media
2 guidesHow to Resize Images for Instagram (All Post Types)
The exact pixel dimensions for Instagram posts, stories, reels, and profile photos.
How to Resize Images for LinkedIn (Profile, Banner, Posts)
Get the right image sizes for your LinkedIn profile photo, cover photo, and posts.
Conversion
1 guideFormats
2 guidesReady to put these to work?
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