Guides
Best Image Format for WordPress Site Speed
WordPress serves whatever you upload, so heavy PNGs slow your site. Here is which format serves best, how to enable WebP or AVIF safely, and the upload settings that bloat your library.
Guides & tutorials
The PNG2JPG Blog
Guides, tips, and deep dives on image conversion, compression, and beating upload size limits.
Guides
Colour Depth Explained: 8-Bit vs 24-Bit vs 32-Bit
Colour depth is how many bits store each pixel's colour. Here is what 8-bit, 24-bit, and 32-bit mean, how many colours each holds, and why 8-bit PNGs band while 24-bit stay smooth.
Comparisons
AVIF vs WebP: Which Next-Gen Image Format Wins?
AVIF compresses about 20 percent harder than WebP and supports HDR, but WebP encodes faster and has wider support. Here is which next-gen format wins your job.
Comparisons
JPG vs WebP: Real File Size and Quality Tests
WebP files run about 30 percent smaller than JPG at matched quality. Here is where the artifacts differ, what the size tests show, and when JPG is still the safer choice.
Comparisons
SVG vs PNG: When to Use Vector Instead of Pixels
SVG scales to any size at a fraction of the weight; PNG handles photos and complex detail. Here is the practical rule for logos, icons, and everything in between.
Guides
Why Is My PNG So Large? (And How to Shrink It)
PNG files are huge because they store every pixel losslessly. That is great for graphics but terrible for photos. Here is exactly why, and the fastest way to shrink one.
How-To
How to Convert PNG to PDF (Single or Multiple Images)
Turn one PNG into a PDF, or combine several into a single document. Here is how to convert PNG to PDF on Windows, Mac, iPhone, and in the browser, no software needed.
Comparisons
PNG vs WebP: Which Image Format Should You Use?
WebP beats PNG on file size by 25 to 35 percent and still supports transparency. But PNG has universal compatibility. Here is exactly when to use each format.
Comparisons
JPG vs HEIC: Which Photo Format Is Better?
HEIC saves iPhone photos at half the size of JPG, but JPG opens everywhere. Here is the real trade-off between file size and compatibility, and which to choose.
Guides
What Is a JPG File? How JPEG Compression Works
A JPG is a lossy image format built in 1992 to make photographs small. Here is what JPG is, how its compression discards detail you cannot see, and when to use it.
Guides
What Is a PNG File? Format, Uses, and Pros and Cons
A PNG is a lossless image format with transparency support, built in 1996 to replace GIF. Here is what PNG is, what it is good and bad at, and when to use it.
Guides
What Is an Alpha Channel? Transparency in Images Explained
The alpha channel is the fourth value in a pixel that controls transparency. It is why PNG can be see-through and JPG cannot. Here is how it works, simply explained.
Comparisons
PNG to JPG: Photoshop vs Canva vs Online Converter Compared
Photoshop gives pro control but costs a subscription. Canva converts mid-design but uploads your files. A dedicated browser tool wins on speed, privacy, and exact sizes. Compared in full.
How-To
How to Convert PNG to JPG on Windows 11: 5 Free Methods (No Download)
Windows converts PNG to JPG with nothing to install. Paint does it in three clicks, PowerToys handles bulk, and the browser hits exact sizes like 100KB. Five methods compared.
How-To
How to Convert PNG to JPG on Mac: 5 Free Methods (No App Needed)
Your Mac converts PNG to JPG with no download. Preview does it in four clicks, a Quick Action turns it into a right-click, and the browser hits exact sizes. Five methods compared.
Guides
Convert PNG to JPG with a Transparent Background: What Happens and How to Control It
JPG cannot store transparency, so every see-through pixel must become a solid colour. Here is why that happens and how to pick the right fill for your use case.
How-To
How to Convert PNG to JPG on iPhone (No App Needed)
Your iPhone already converts PNG to JPG three ways: the Files app, Safari, and Shortcuts. No App Store download needed. Here is each method step by step, plus how to hit an exact file size for forms.
Comparisons
PNG vs JPG: When to Use Each Format (Complete Guide)
JPG suits photographs, PNG suits graphics and transparency. This guide covers the technical differences, real file size numbers, quality trade-offs, and exactly which format to pick for every common situation.
How-To
How to Get a PNG Under 100KB as JPG for Online Forms
Government portals, job sites, and visa applications often cap uploads at 100KB. Here's the fastest way to hit that limit without ruining your image.
Guides
How to Convert PNG to JPG Without Losing Quality
A 2.1MB photographic PNG becomes a 310KB JPG at 90 percent quality, and your eyes can't tell the difference. Here are the exact settings that make it work.