raster format

What is a .PCT file?

PCT is the Macintosh PICT format, the classic Mac graphics format for QuickDraw images before PNG and JPEG took over.

Full name
Macintosh PICT
Developed by
Apple
Released
1984
Extension
.pct
MIME type
image/pct
Transparency
Varies

How to open a PCT file

PCT opens in older Mac software, GraphicConverter and ImageMagick; convert to PNG/JPG for modern use.

What PCT files are used for

Photos & web images

Share, post and embed pictures across sites and apps.

Editing & design

Work with the format in editors like Photoshop and GIMP.

Storage & archiving

Keep memories and assets in a widely-readable form.

Strengths & limitations

✔ Strengths✖ Limitations
Purpose-built for its nicheNo transparency support
Limited support — may need converting

Need more than a conversion?

Remove the background from PCT images, upscale to 4K, or generate new visuals with SharkFoto AI.

Frequently asked questions

PCT is the Macintosh PICT format, the classic Mac graphics format for QuickDraw images before PNG and JPEG took over.

PCT opens in older Mac software, GraphicConverter and ImageMagick; convert to PNG/JPG for modern use.

PCT is optimised for its specific use rather than strictly lossless storage.

Use SharkFoto's free tools — upload your PCT file and convert it to a more convenient format in seconds. It's free, processed securely and never stored.

No — PCT doesn't store transparency; convert to PNG or WEBP if you need it.