Blog 18 posts

Writing.

Notes on file formats, privacy and the small problems these tools exist to solve.

All posts 100kb 1mb 5mb bom compress image compression crop dpi email attachment exif experiment extract file size gps heic image compression image compressor image conversion image converter image resizer image size images instagram iphone job application jpeg jpg json json.parse ocr passport photo pdf pdftotext photo quality png png to jpg print privacy redaction resize scan screenshot screenshots signature us passport utf-8 visa photo webp windows

19 August 2026 png Why is my PNG so large? A 2400×1600 photo saved as PNG was 3,412,334 bytes. Same pixels as JPEG quality 80: 458,627. PNG is lossless. Photos pay for that. Read

18 August 2026 pdf Why is my PDF over 1MB? A one-page text CV is 1,080 bytes. This page’s own 16:9 PNG is 1.19MB. Forms cap PDFs at 1MB because the photo inside is the file. Read

18 August 2026 heic Why won't Windows open my iPhone photo? iPhone photos are HEIC since iOS 11. Windows Photos needs two Store extensions, or convert to JPG in the browser. The photo never uploads. Read

17 August 2026 images I compressed 20 real files at JPEG quality 80. Here's what actually shrank. 20 real files, JPEG quality 80, bytes measured from disk. Median save 15.5%. One small web JPEG got bigger. PNG screenshots were the outliers. Read

17 August 2026 instagram Why does Instagram make my photo look blurry? Instagram downscales feed photos to 1080px wide, then JPEG-compresses them. iPhone P3 color gets flattened to sRGB. Here's the two-minute fix. Read

17 August 2026 images How to extract text from an iPhone screenshot (without retyping it) Your iPhone screenshot has text in it. Here's how to get it out as copyable text in a second, including the privacy trade-off every free OCR tool makes. Read