Sample PNG 10MB File
PNG image — lossless test card
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Download 10MB PNG10 MBTestFile-png-10mb.png
File details
| Format | PNG |
| Extension | .png |
| MIME type | image/png |
| Size | 10 MB |
| Exact bytes | 10,485,760 |
| Filename | TestFile-png-10mb.png |
| Format version | PNG (Portable Network Graphics) — ISO/IEC 15948 |
| Contents | ~4,500 × 3,375 px RGBA synthetic gradient with alpha mask; lossless DEFLATE compression |
| Encoding | RGBA 8-bit; zlib/DEFLATE compression level 6; adaptive filter |
What is a 10MB PNG file useful for?
A 10 MB PNG at ~4,500 × 3,375 px is appropriate for testing the upper range of user-submitted lossless image uploads — print-quality artwork, design assets, and scanned documents. Use it to verify that your upload pipeline enforces its file-size limit before attempting to decode, to test S3 multipart upload triggering at sizes above 5 MB, and to confirm that PNG-to-WebP batch conversion jobs handle this size without running out of memory in your worker containers.
What's inside this file?
Generated with Pillow in RGBA mode. Approximately 4,500 × 3,375 pixels. The uncompressed RGBA raster is approximately 60.75 MB. PNG DEFLATE brings this to ~10 MB. Pillow's memory footprint during decode peaks at roughly 65–75 MB — well within typical server limits but significant in constrained Lambda or Cloud Function environments.
Download via curl
curl -L "http://localhost:8000/files/png/TestFile-png-10mb.png" \ -o TestFile-png-10mb.png
Need different parameters?
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