The Blinkimg blog
Guides, format comparisons and engineering notes, every figure measured on the same engine you use.
Recent articles
- FormatsCMYK, RGB, ICC profileCMYK to RGB: how to convert a print file for screensTo convert CMYK to RGB, run the file's numbers through its ICC profile, not a formula. We took one photo to print CMYK and back 7 ways, and measured how far each one drifts on 2,457,600 pixels.Sahadat Husain
- GuidesPhotoshop, Crop, Aspect ratioHow to crop an image in Photoshop 2026, step by stepTo crop an image in Photoshop, press C, pick a ratio on the options bar, drag the handles and press Enter. We cut every preset from our 9.8 MB camera photo and measured what each one keeps.Sahadat Husain
- EngineeringFavicon, ICO, PNGWhat is a favicon? Size, formats and how to make oneA favicon is the small square icon that marks a website in browser tabs, bookmarks and search results. Make it from one simple square mark. Use 32 × 32 pixels for the tab, 180 for Apple and 192 and 512 for a web app. We measured each size in bytes and logged the files headless Chromium 149 requested on five test pages.Sahadat Husain
- GuidesFile size, Max file size, Max resolutionImage still too big after compressing? Set a size capCompressing at Auto aims at a quality, not at your limit, so a big photo can stay too big. We measured each cause on one photo.Sahadat Husain
- GuidesUpload quality, Instagram, FacebookWhy are my photos blurry when I upload them?Two things blur an upload: too few pixels and extra lossy saves. We simulated Instagram’s stated resize with our engine and measured both.Sahadat Husain
- GuidesUpload errors, Minimum size, Enlarge imageImage too small to upload? Fix pixels or KBThe error means too few pixels or too few KB. We list each site’s minimum and measure what each fix really adds.Sahadat Husain
- SizesPrint sizes, Wallet photo, 4x6How much is a wallet size photo? Every print sizeTwo sizes share the name wallet, sold in sets of 2 to 16. Every print size here is measured on one photo.Sahadat Husain
- GuidesResize, Image quality, ResamplingHow to resize an image without losing qualityShrink with a smooth kernel, save once, and keep the original. Enlarging adds pixels but no detail, unless the image is a vector.Sahadat Husain
- GuidesFile types, File extensions, PNG to JPGHow to change a file type: convert, don’t renameTo change a file type, open the file and save it in the new format, or use a converter. Renaming the extension changes only the name.Sahadat Husain
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