Convert PS to BMP — Free Online Converter
Convert PostScript (.ps) to Bitmap Image (.bmp) online for free. Fast, secure document conversion with no watermarks or registration....
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変換方法
Upload your .ps 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 .bmp file when it's ready.
About PS to BMP Conversion
PostScript (PS) is Adobe's page description language, a Turing-complete programming language designed to describe the appearance of printed pages with mathematical precision. PostScript files contain vector graphics, text with embedded fonts, and rasterized images, all described through a stack-based programming syntax. PS was the dominant language for professional printing from the 1980s through the 2000s before PDF largely replaced it. BMP (Bitmap Image) is Windows' native uncompressed raster image format, storing pixel data without any lossy compression.
Converting PS to BMP rasterizes a PostScript page description into an uncompressed bitmap image. This conversion is needed when PostScript artwork, technical drawings, or print-ready pages need to be used in contexts that require raster image files — image editors, web pages, presentations, or applications that cannot interpret PostScript commands.
Why Convert PS to BMP?
PostScript files cannot be viewed by most modern applications — they require a PostScript interpreter (like Ghostscript) or a professional prepress RIP. Converting PS to BMP creates a universally viewable image that any computer, phone, or web browser can display. BMP's uncompressed nature means zero quality loss from the rasterization, preserving every pixel of the rendered output.
Legacy print archives often contain thousands of PS files from prepress workflows of the 1990s and 2000s. These archives need to be migrated to modern image formats for viewing, cataloging, and integration into digital asset management systems. BMP serves as a lossless intermediate format that can be further converted to PNG, JPEG, or TIFF as needed.
Common Use Cases
- Convert archived PostScript print files into BMP images for visual cataloging in digital asset management
- Rasterize PostScript technical drawings into BMP for embedding in Word documents and presentations
- Transform PostScript artwork from legacy DTP systems into viewable BMP images for design review
- Convert PostScript page proofs into BMP for side-by-side comparison with current print output
- Extract rasterized images from PostScript prepress files for use in modern graphic design workflows
How It Works
Ghostscript interprets the PostScript program, executing all drawing commands (moveto, lineto, curveto, show, image), font rendering, color operations, and compositing. The result is a rasterized bitmap at the specified resolution (DPI). This bitmap is then written to BMP format using Windows Bitmap File Format (DIB) with 24-bit RGB color depth and no compression. Ghostscript handles PostScript's full feature set: Level 1/2/3 operations, Type 1 and TrueType fonts, color management (CMYK-to-RGB conversion), transparency, gradients, and clipping paths. The rasterization resolution is configurable — 72 DPI for screen viewing, 150 DPI for standard quality, 300 DPI for print-quality output.
Quality & Performance
The rasterized BMP output faithfully represents the visual appearance of the PostScript page at the specified resolution. Since BMP is uncompressed, there are no compression artifacts — the quality is determined entirely by the rasterization resolution. At 300 DPI, vector text and line art render with excellent sharpness. At 72 DPI (screen resolution), fine details may appear pixelated. PostScript's CMYK color space is converted to RGB for BMP, which may cause subtle color shifts in process-color artwork. For color-critical work, verify the RGB conversion meets your requirements.
Device Compatibility
| Device | PS | BMP |
|---|---|---|
| Windows PC | Partial | Native |
| macOS | Partial | Partial |
| iPhone/iPad | Partial | Partial |
| Android | Partial | Partial |
| Linux | Partial | Partial |
| Web Browser | No | No |
Tips for Best Results
- 1Use 300 DPI for print-quality BMP output; 150 DPI for general use; 72 DPI for quick preview
- 2Convert to PNG instead of BMP if file size matters — PNG provides lossless compression at 50-80% smaller files
- 3Verify font rendering in the output — unembedded fonts may be substituted with Ghostscript defaults
- 4For multi-page PS files, convert to a multi-page format like PDF first, then extract individual pages as BMP
- 5Check CMYK-to-RGB color conversion if the PostScript file uses process colors for professional print output
Related Conversions
PS-to-BMP conversion rasterizes PostScript page descriptions into uncompressed bitmap images, providing a lossless path from vector print content to universally viewable raster format.