The Blinkimg blog
Guides, format comparisons and engineering notes, every figure measured on the same engine you use.
Recent articles
- 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
- 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
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