Image format

Fichiers d'echantillon PNG

PNG (.png) is a lossless raster image format supporting truecolor, palette, interlacing, and alpha transparency. Use sample .png files to test decoder compliance, color profile handling, and transparency rendering.

9 fichiers All to 50MB SHA256 verified Manifeste included

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Quick facts

CategorieImage

Fichiers totaux9

Extension.png

MIMEimage/png

Opens withChrome/Firefox, Photoshop

ManifesteJSON

Demander une couverture liee

Files first

PNG Sample Files — Download

Starter file

png_1000x600_sample_file_21KB.png · 20.1 KB

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Receipt Scan PNG

Clean scan-style PNG for OCR and receipt extraction tests.

png_receipt_scan_sample.png · 4.4 KB

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OCR-Noise PNG

Noisy grayscale PNG for OCR preprocessing and robustness checks.

png_ocr_noise_sample.png · 42.0 KB

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Sort

All (9) 50KB (6) 10MB (1) 25MB (1) 50MB (1)

50KB PNG 10MB PNG

Nom du fichier	Taille	MIME	Telecharger
png_1000x600_sample_file_21KB.png .png Starter `SHA256 17643f66be24...`	20.1 KB	`image/png`	Telecharger
png_100x100_sample_file_5KB.png .png `SHA256 f1eef2b7e4d1...`	4.3 KB	`image/png`	Telecharger
png_2000x1200_sample_file_36KB.png .png `SHA256 e6e4885b4f37...`	35.7 KB	`image/png`	Telecharger
png_500x300_sample_file_13KB.png .png `SHA256 9af726abe3a9...`	12.0 KB	`image/png`	Telecharger
png_ocr_noise_sample.png .png Realistic `SHA256 cb7cf2486f66...`	42.0 KB	`image/png`	Telecharger
png_receipt_scan_sample.png .png Realistic `SHA256 361a115695b4...`	4.4 KB	`image/png`	Telecharger
png_sample_file_10MB.png .png Large `SHA256 6745b7e94d59...`	10.0 MB	`image/png`	Telecharger
png_sample_file_25MB.png .png Large `SHA256 ddb96117df14...`	25.0 MB	`image/png`	Telecharger
png_sample_file_50MB.png .png Large `SHA256 5ad6ffe2296c...`	50.0 MB	`image/png`	Telecharger

Use cases

PNG Testing Workflows

Upload Testing

PNG pour Upload Testing

Ouvrir le format PNG

Parser Regression

PNG pour Parser Regression

Ouvrir le format PNG

QA Automation

PNG pour QA Automation

Ouvrir le format PNG

Compare and decide

PNG Format Comparisons

PNG vs WebP

Choisissez entre PNG sans perte et WebP moderne pour les graphiques et la livraison web.

Ouvrir la comparaison

BMP vs PNG

Compare raw bitmap simplicity against compressed lossless PNG portability.

Ouvrir la comparaison

Best Image Format for Web Performance Best Image Format for Print Workflows Best Format for Transparent UI Assets How to Convert BMP to PNG

More image formats: TIFF BMP GIF SVG JPEG AVIF

FAQ and reference

PNG File FAQ

Verification du checksum

Utilisez les checksums pour confirmer l'integrite du fichier apres telechargement.

shasum -a 256 your_file_name_here
# Compare output with SHA256 values listed above.

Where is the machine-readable manifest?

Use the manifest when you need stable names, SHA256 values, and URLs for automation.

Manifeste RFC 2083 / ISO 15948

Methodologie de validation

Validate MIME sniffing against extension and file signatures.
Test transparency, color profile, and resize pipelines.
Benchmark decode speed and memory use for larger dimensions.

Matrice de fixtures

Utilisez la matrice PNG pour choisir les bons fixtures propres, limites et casses pour ce format.

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Packs de workflow

Image Extraction Fixture Pack

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