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PCT File - What is a .pct file and how do I open it?
Learn about .PCT files and view a list of programs that open them.
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Overview
What is a PCT file? A PCT file is an image saved in the Macintosh PICT format, which Apple developed in 1984. PCT files can contain vector or raster images. The PCT format has been deprecated, so PCT files are uncommon.
More Information PCT file open in Adobe Photoshop Apple created the PICT format for use with QuickDraw, a 2D graphics library and API used by previous versions of Mac OS. Two versions of the PICT format, PICT 1 and PICT 2, exist. PICT 1 supports up to eight colors. PICT 2 supports 24- and 32-bit color (up to millions of colors). While the PICT format is a vector format, PICT files can contain embedded raster images. Many PICT files contain only a single embedded raster image and do not contain any vector data. NOTE: PICT images that use the .pct extension were likely created on a Windows computer. PICT images created on Macs typically use the .PICT extension.
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DeveloperN/A
Popularity1.9 | 8 Votes
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.PCT File Extension
2 file types use the .pct file extension.
Picture File
| Developer | Apple |
| Popularity |
2.4 | 26 Votes |
NEW: Open your .PCT file online with File Helper . View Online
What is a PCT file?
A PCT file is an image saved in the Macintosh PICT format, which Apple developed in 1984. PCT files can contain vector or raster images. The PCT format has been deprecated, so PCT files are uncommon.
More Information
PCT file open in Adobe Photoshop
Apple created the PICT format for use with QuickDraw, a 2D graphics library and API used by previous versions of Mac OS. Two versions of the PICT format, PICT 1 and PICT 2, exist. PICT 1 supports up to eight colors. PICT 2 supports 24- and 32-bit color (up to millions of colors).
While the PICT format is a vector format, PICT files can contain embedded raster images. Many PICT files contain only a single embedded raster image and do not contain any vector data.
NOTE: PICT images that use the .pct extension were likely created on a Windows computer. PICT images created on Macs typically use the .PICT extension.
How to open a PCT file
You can open a PCT file with XnViewMP (multiplatform), Adobe Photoshop (Windows, Mac), Netpbm (multiplatform), or IrfanView (Windows).
How to convert a PCT file
You can use XnViewMP , Adobe Photoshop , Netpbm, or IrfanView to convert PCT files to other formats. For example, XnViewMP can convert PCT files to the following formats (and many others):
Programs that open PCT files
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Program Name
Platform
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Windows
Adobe Photoshop 2025
Free Trial
Adobe Photoshop Elements
Free Trial
Adobe Illustrator 2025
Free Trial
CorelDRAW Graphics Suite 2024
Free Trial
Corel PaintShop Pro 2023
Free Trial
XnViewMP
Free
IrfanView
Free
Netpbm
Free
Mac
Apple Preview
Included with OS
Adobe Photoshop 2025
Free Trial
Adobe Photoshop Elements
Free Trial
Adobe Illustrator 2025
Free Trial
Lemkesoft GraphicConverter
Free Trial
XnViewMP
Free
Netpbm
Free
Linux
XnViewMP
Free
Netpbm
Free
Web
FileHelper.com
Free
Category: Vector Image Files
Updated: December 14, 2022
Pure Compound Text File
| Developer | N/A |
| Popularity |
1.9 | 8 Votes |
Chemical data file used by ChemSep, an application used to simulate distillation, extraction, and absorption operations; contains component data, such as the name, index, CAS number, formula, structure, T correlations, and molecular values.
More Information
You can import and export the data from or to a PCT file in ChemSep through the PCDmanager. To access the PCDmanager, select Databanks → Pure components data (PCD/PCT) , click Edit , and select Import component from file or Export component to file .
NOTE: Data in PCT files is stored in text format, whereas .PCD files store data in binary format.
Programs that open PCT files
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ChemSep
Free
Category: Data Files
Updated: September 29, 2015