AllImgTools Blog
Practical guides on image formats, iPhone photo problems, social media image specs, and image optimization. Written to actually solve problems — not to rank for keywords.
How to Combine Multiple Images into One PDF: 4 Methods Compared
Four ways to merge images into a PDF. Output sizes vary by up to 5x. Some methods upload your files, others don't. Honest comparison nobody else publishes.
Why Is My iPhone Photo So Large? (And How to Fix It in 2026)
Your iPhone photo is 10-30MB because of HEIC format, Live Photos, and 48MP capture. Here's exactly why — and three fast fixes that don't lose quality.
AVIF vs WebP vs JPG in 2026: Which Format Should You Actually Use?
AVIF is 50% smaller than JPG. WebP is 30% smaller. Both work in 95%+ of browsers in 2026. Here is which format to use for websites, photos, and email — with real numbers.
Why Are My Instagram Photos Blurry After Upload? (5 Real Reasons + Fixes)
Instagram compresses every photo on upload. Here are the 5 specific reasons your photos look blurry — and the exact dimensions, file size, and format that survive Instagram's compression intact.