Convert PNG to PS — Free Online Converter
Convert Portable Network Graphics (.png) to PostScript (.ps) online for free. Fast, secure image conversion with no watermarks or registration....
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Upload your .png file by dragging it into the upload area or clicking to browse.
Choose your output settings. The default settings work great for most files.
Click Convert and download your .ps file when it's ready.
About PNG to PS Conversion
PostScript (PS) is Adobe's page description language, developed in 1984 for controlling laser printers, imagesetters, and professional printing equipment. Converting PNG to PostScript wraps your image in a PS program that describes the pixel data as printer commands. The resulting .ps file can be sent directly to PostScript printers, processed by RIP (Raster Image Processor) systems, or used in legacy prepress and typesetting workflows.
PNG's lossless quality makes it an excellent source for PostScript conversion. Every pixel reaches the PostScript output without degradation, ensuring that the printed result is as accurate as the source image. The PostScript program includes proper DSC (Document Structuring Conventions) comments for page dimensions, color space, and bounding box information.
Why Convert PNG to PS?
Commercial printing operations using older RIP hardware — Harlequin, CPSI, or legacy Agfa systems — may require PostScript input. When a PNG image needs to be fed into such a print production pipeline, converting to PS provides the compatible format. PostScript is also the native language of many industrial label printers, large-format plotters, and specialized printing equipment.
LaTeX documents compiled with the traditional dvips workflow require PostScript graphics. Academic papers, technical reports, and mathematical publications prepared in TeX/LaTeX with DVI output cannot include PNG images directly — they must be wrapped in EPS or PS format. This conversion bridges the gap between modern image formats and the TeX typesetting ecosystem.
Common Use Cases
- Send PNG images to PostScript-compatible commercial printers and RIP systems
- Prepare PNG graphics for LaTeX documents compiled with the dvips pipeline
- Create PostScript versions of PNG images for legacy prepress workflows
- Generate printer-ready files for industrial label and large-format printing
- Convert PNG images for inclusion in PostScript-based page layout systems
How It Works
Ghostscript encodes the PNG's pixel data as a PostScript Level 2 program. The image pixels are encoded using ASCII85 and wrapped in the PostScript image operator. DSC comments provide %%BoundingBox, %%Pages, and other structural metadata. Color data is written in the RGB color model at 8 bits per channel. Alpha transparency is flattened against a white background since PostScript does not support raster image transparency. The output file is a text-based program viewable and editable with any text editor.
Quality & Performance
The image data in the PostScript file is a faithful, lossless representation of the PNG pixels (after alpha flattening). No lossy compression is applied. Print quality depends on the output device resolution relative to the image DPI — a 72 DPI web PNG will appear pixelated on a 600 DPI printer. PNG's lossless nature ensures that the PostScript output contains the best possible source data for printing.
Device Compatibility
| Device | PNG | PS |
|---|---|---|
| Windows PC | Native | Partial |
| macOS | Native | Partial |
| iPhone/iPad | Native | Partial |
| Android | Native | Partial |
| Linux | Partial | Partial |
| Web Browser | Native | No |
Tips for Best Results
- 1Use high-resolution PNGs for PostScript files intended for commercial print output
- 2PostScript files are text-based programs — you can inspect them in any text editor
- 3Convert PS to PDF using ps2pdf if you need a modern document format for distribution
- 4For LaTeX, rename the .ps output to .eps for inclusion via \includegraphics
- 5PostScript Level 2 encoding ensures compatibility with the widest range of RIP systems
Related Conversions
PNG to PostScript conversion serves professional printing, academic typesetting, and legacy prepress workflows. PNG's lossless quality ensures optimal source data for the PostScript interpreter and the final printed output.