Extension Description Author File / Link
pal Dr Halo PAL files Bob Montgomery Download
palm Palm Native Image Format Download
pat AutoCAD Patch Definition Files Autodesk Download
pbm Portable Bitmap format Download
pcd Kodak PhotoCD format Alex Kwak Download
pcl HP PCL5 Printer control Hewlett Packard Download
pcx PCX File Format Technical Reference ZSoft Corporation Download
pgm Portable Greymap format Jef Pozkanzer Download
pic Autodesk Animator PIC/CEL File Format Max Maischein Deprecated resource Download
LOTUS 1-2-3 .PIC File Format Details Jim Kyle Deprecated resource Download
CCD Astrocamera format for MiPS: PIC Hans-Rudolf Wernli Deprecated resource Download
Autodesk Animator Pro PIC/MSK File Format Max Maischein Deprecated resource Download
pict Macintosh PICT files information Deprecated resource Link
Macintosh PICT files information Deprecated resource Link
Macintosh PICT files information Deprecated resource Link
pix Alias PIX File Format Information Rob Neve / Greg Tada Deprecated resource Download
LUMENA .PIX and .BPX file formats Deprecated resource Download
pixar PIXAR Raster Picture files Deprecated resource Download
ply Autodesk Animator Polygon File Format Max Maischein Deprecated resource Download
png Lossless raster image format; current W3C PNG Third Edition Recommendation, 2025 W3C PNG Working Group Link
Historical Portable Network Graphics specification Thomas Boutell et al. Deprecated resource Link
Historical Portable Network Graphics specification Thomas Boutell et al. Deprecated resource Download
Historical nonstandard PNG-related 16-bit-pixel proposal Rich Franzen Deprecated resource Link
Portable Network Graphics Information Various Link
pnm Portable Any Map PNM Files, PBM, PGM, and PPM Deprecated resource Link
pntg MacPaint File Format (Acrobat) Bill Atkinson/Jim Reekes Deprecated resource Download
ppm Portable Pixelmap format Jef Pozkanzer Deprecated resource Download
psd Adobe Photoshop 2.5 File Format Thomas Knoll Deprecated resource Download
Adobe Photoshop 3 and 4 File Formats Adobe Deprecated resource Download
Adobe Photoshop 3 Plug-in format Adobe Deprecated resource Download
Adobe Photoshop 6.0 File Formats Adobe Deprecated resource Download
Adobe Photoshop SDKs Adobe Deprecated resource Link
psf The Palette Storage Format (PSF) (Incomplete) Randy Mcdowell Deprecated resource Download
psp Paint Shop Pro File Format Specification version 3 Jasc Software Deprecated resource Download
Paint Shop Pro File Format Specification version 5 Jasc Software Deprecated resource Download
Paint Shop Pro File Format Specification version 8 Jasc Software Deprecated resource Download
qcf Quickbasic Coordinates File Peter Moor Download
qfx Quick Link Fax Image File Format Max Maischein Download
qpix CCD Astrocamera format (Qwik-Pix and Electrim ED-1000) Hans-Rudolf Wernli Download
ras Sun Rasterfile Format Deprecated resource Link