When converting HEIC to JPG or PNG, many people wonder: which one should I choose? This article breaks down the differences and explains which format fits each use case.
Key Differences Between JPG and PNG
| JPG | PNG | |
|---|---|---|
| Compression | Lossy | Lossless |
| File size | Small | Large |
| Quality loss | Yes (degrades each save) | No |
| Transparency | Not supported | Supported |
| Best for | Photos | Logos, illustrations, screenshots |
Lossy vs. Lossless Compression
JPG (lossy compression): Reduces file size by permanently discarding some image data. Every time you save a JPG, a small amount of quality is lost — and that loss accumulates over multiple saves.
PNG (lossless compression): Compresses the image while retaining all data. No matter how many times you save it, quality never degrades. The trade-off is a larger file size.
Choosing by Use Case
Photos → JPG
Landscape shots, portraits, food photos, and other everyday photos taken on your iPhone are well-suited to JPG.
- Smaller file sizes save storage and bandwidth
- Great for social media and websites
- Works for printing too
Logos, Icons, and Illustrations → PNG
Images with text, sharp lines, or flat shapes are better as PNG.
- Edges and lines stay crisp
- Supports transparent backgrounds
- Can actually be smaller than JPG for images with few colors
Screenshots → PNG
Screen captures belong in PNG. Screenshots contain a lot of text and fine lines that become blurry when saved as JPG.
Which Format for HEIC Conversions?
For photos taken on an iPhone, JPG is the right choice in most cases.
- Photos look great at JPG quality
- File sizes are dramatically smaller than PNG
- Works across web, email, and print
Only choose PNG if you specifically need a transparent background or absolutely cannot tolerate any quality loss.
Summary
- Photos and everyday snapshots → JPG
- Logos, icons, images needing transparency → PNG
- Screenshots → PNG
- Not sure? → JPG (high quality setting) works fine