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Showing posts from October, 2026

Why Screenshot Text Gets Blurry: PNG vs JPEG Tested

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Start with the screenshot you actually need to share For a screenshot dominated by small text, a table or flat interface colors, start with PNG when the destination accepts it. PNG preserves the pixel values it receives. Ordinary JPEG discards information during compression, which can leave fringes or uneven edges around small lettering. Check the upload rules first. A form may require JPEG, limit bytes, or restrict dimensions. The smallest file is useful only if the important text remains legible. PNG is not always larger, and a JPEG quality number is not a guarantee of a particular file size. Our test: two source images, eight saved files We generated an opaque text-and-flat-color card and a separate scene with gradients and seeded texture. Both are original 1,200 × 720 RGB images. Neither is an app screenshot or a camera photograph. The upload limit and error text on the test card are fictional test content. Each source was saved directly as PNG, JPEG quality 90 ...

Image Dimensions vs File Size: Fix a Rejected Upload

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Check which kind of “size” the form means Image dimensions count the pixels across and down. File size counts the bytes stored on disk. An upload can satisfy one condition and fail another, so check each requirement separately. For example, “no wider than 1,200 px” and “under 500 KB” are two different tests. Those numbers are illustrative, not the requirements of a particular service. A form may also restrict the format or aspect ratio. Requirement What it controls What to inspect Width and height in px The pixel grid Actual width and height of the saved file A KB or MB limit Stored data size The finished file’s byte count JPG, PNG, or another format Accepted encoding The actual saved format A required aspect ratio Image shape Cropping, padding, and distortion A measured example: equal dimensions, different bytes On October 30, 2026, we created one synthetic 1,200 × 800 RGB image and saved JPEG variants with Pillow 12.3.0. A quality setting of 90 produced 209,398 by...

Why Is My ZIP File Bigger? A Measured Test and Practical Fixes

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The short answer A ZIP file can be larger than its contents without anything being broken. Compression has less to work with when the input is already compressed, and the archive also needs space for file information. Bundling files and making them smaller are separate goals. If an attachment is still too large, do not keep zipping the ZIP. First check whether you need one convenient package or a smaller number of bytes. The right next step depends on that distinction. Choose the next step for your actual goal Start with the outcome you need. The table separates tasks that look similar in a file manager but require different checks. Your goal Next step Check before sending Send several files together Create one ZIP. Extract it and confirm the file list. Meet an image upload limit Review dimensions, format, and encoding quality. Check actual bytes and readable detail. Send an already-compressed archive Measure before attempting another compression pass. Keep the smal...