Image Processing Practical Guides
Step-by-step answers to everyday questions: compress to a target KB, pick the right format, match marketplace image sizes, get ID photos right and handle image SEO.
PDF watermarking: copyright marks for internal documents
Adding a watermark before sending contracts, quotes or internal docs reduces careless forwarding. This article covers wording that deters misuse, opacity and tiling, and why the file grows after watermarking.
Editing & ProcessingHow to add a watermark that deters theft without ruining the image
A heavy watermark ruins the image; a light one is cropped in one click. This article gives concrete parameters for position, opacity and tiled anti-crop watermarks, plus how to batch-watermark hundreds of images.
Editing & ProcessingWhich ID-photo background color? White, blue, red and where each is used
ID cards, social security, diplomas, résumés and visas each require different background colors. This article maps white, blue and red backgrounds to common documents, with tips on preserving hair edges when changing color.
Editing & ProcessingAI cutout still leaves rough edges? Read this optimization checklist first
Poor AI cutout is usually not the model's fault but low contrast between subject and background and complex edges. This article gives an optimization checklist across shooting, image selection and parameters.
Editing & ProcessingID photo size chart: 1-inch, 2-inch (with background-color notes)
1-inch 295×413, 2-inch 413×626, small 1-inch 260×378… This article lists common ID photo pixel and mm sizes, with notes on changing background color and hitting a target KB.