Compressed Macintosh PICT picture image file
File type: Graphics file
A pcz file is a compressed Macintosh PICT picture image. It stores graphics in the PICT format used by classic Macintosh software.
PICT images can contain bitmap and vector graphics and were handled by Apple's QuickDraw graphics system.
File type category:
Graphics file
Date updated: October 22, 2026
The pcz file extension identifies a compressed version of a Macintosh PICT picture image. PICT was a graphics format used on original Macintosh computers to exchange images containing bitmap and vector graphics.
The format is associated with Apple's QuickDraw graphics library and with older Macintosh graphics software. It is a legacy format and is no longer in common use on modern computers.
Open a pcz file with a compatible older Macintosh graphics application that supports compressed PICT images. QuickDraw-based software on classic Mac OS may also be able to read it.
Modern graphics applications may not support this legacy format directly, so a compatible older system or image-conversion workflow may be required.
No specific pcz converter is known at this time. If a compatible graphics application can open the file, use its export or save-as function to convert the image to a more common graphics format.
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