The Blinkimg blog
Guides, format comparisons and engineering notes, every figure measured on the same engine you use.
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- GuidesDiscord, Upload limits, NitroDoes Discord compress images? Limits and file sizesDiscord compresses some images: Data Saving Mode sends smaller ones, and uploads pass a “pre-compression check”. Discord checks the file size before any compression. The free limit is 20 MB per file since August 2026.Sahadat Husain
- GuidesDPI, Print, ResolutionHow to change the DPI of an image for printThe DPI of an image changes in one box: Resolution, in Photoshop's Image Size or Preview's Adjust Size. Turn Resample off, and the pixel count stays; only the print size moves. Our script retagged one 1800 × 1200 JPG at 72 and at 300 DPI. Both weigh 146.6 KB, and no pixel value changed.Sahadat Husain
- FormatsGIF, Image formats, AnimationWhat does GIF stand for? Meaning, origin and file sizeGIF stands for Graphics Interchange Format, the image format CompuServe released in 1987. A GIF holds up to 256 colours and can loop short animations. We saved one 2.4-second loop 5 ways. The GIF weighed 1,539.3 KB, and the AV1 video 33.0 KB.Sahadat Husain
- GuidesWindows, Paint, ResizeHow to resize an image in Paint on Windows 11 and 10To resize an image in Paint, open it and press Ctrl+W, or click Resize and skew. Choose Pixels or Percentage, keep Maintain aspect ratio on, type the width and click OK. We ran our 9.8 MB camera photo through Blinkimg's engine at each percentage to show what each one weighs.Sahadat Husain
- FormatsPNG, Lossless, TransparencyWhat is a PNG file, and when it beats JPGA PNG file is an image saved without loss, so every pixel comes back exactly as it was stored. A PNG can also be see-through. So PNG beats JPG on logos and flat graphics, and JPG stays smaller for photos.Sahadat Husain
- SizesBanners, Ads, EmailBanner sizes for web, email, ads and every networkThe right banner size depends on where the banner runs. Web ads come in fixed sizes such as 300 × 250 and 728 × 90. An email banner is 600 pixels wide, and a website banner spans your layout. We read Google’s, the IAB’s and Mailchimp’s pages on 4 October 2026, then saved one banner at every size.Sahadat Husain
- SizesYouTube, Thumbnails, BannersWhat size is a YouTube thumbnail, and the banner (2026)A YouTube thumbnail should be 3840 × 2160 pixels at 16:9 and at least 640 pixels wide, YouTube’s help page says. The channel banner is 2560 × 1440, with text and logos kept inside a small safe area. We read YouTube’s pages on 4 October 2026, then measured the files.Sahadat Husain
- GuidesMac, Preview, PhotosHow to resize an image on Mac, crop it and compress itHow to resize an image on Mac: open it in Preview and use Tools, Adjust Size for exact pixels. Crop it to keep only the part you want. For a smaller file in MB, use File, Export and its Quality slider. Here are the main built-in routes, in Apple’s own steps. We ran our 9.8 MB photo through sips, the image tool built into every Mac, on macOS 26.5.1.Sahadat Husain
- GuidesiPhone, iOS 27, PreviewHow to resize an image on iPhone (and make it smaller in MB)How to resize an image on iPhone: crop it in Photos to keep fewer pixels, or, on iOS 26 and later, open it in Preview, where Adjust Size sets exact pixels and Export makes a smaller file in MB. Photos itself has no width and height box. Here are Apple’s own steps for each route and what Apple leaves undocumented. The file sizes are our engine’s, run on a Mac on our 9.8 MB camera photo and a real iPhone 12 Pro HEIC, not on an iPhone.Sahadat Husain
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