Sample PNG 5MB File
PNG image — lossless test card
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Download 5MB PNG5 MBTestFile-png-5mb.png
File details
| Format | PNG |
| Extension | .png |
| MIME type | image/png |
| Size | 5 MB |
| Exact bytes | 5,242,880 |
| Filename | TestFile-png-5mb.png |
| Format version | PNG (Portable Network Graphics) — ISO/IEC 15948 |
| Contents | 3,200 × 2,400 px RGBA synthetic gradient with alpha mask; lossless DEFLATE compression |
| Encoding | RGBA 8-bit; zlib/DEFLATE compression level 6; adaptive filter |
What is a 5MB PNG file useful for?
A 5 MB PNG at 3,200 × 2,400 px tests image processing performance under a realistic high-resolution source. Use it to benchmark PNG decode time in your pipeline, verify that your application does not load the full 30 MB uncompressed RGBA raster into RAM when only a thumbnail is needed, and test PNG-to-JPEG conversion for storage optimisation workflows. It is also appropriate for testing print-quality image upload flows where lossless quality must be preserved.
What's inside this file?
Generated with Pillow in RGBA mode. A 3,200 × 2,400 pixel image with RGBA gradient channels. The uncompressed RGBA raster is approximately 30.72 MB. PNG's lossless DEFLATE achieves roughly a 6:1 ratio on this content, producing a ~5 MB file. PNG decode in Pillow loads the full uncompressed raster into RAM — 30–35 MB for this file, manageable in most environments but worth measuring in constrained containers.
Download via curl
curl -L "http://localhost:8000/files/png/TestFile-png-5mb.png" \ -o TestFile-png-5mb.png
Need different parameters?
Generate a custom PNG file with exact settings.