Everything about Media Library

One photograph has to be a wide header, a square thumbnail and a tall story card. Cropping loses the edges, stretching lies about proportions, letterboxing buys space it never uses. Seam carving spends the quiet parts of the frame instead: what a seam is, why the search needs a table, and exactly where the method falls apart.

Subscriber holds one capability, Administrator all fifty. What the five WordPress user roles really grant, why code checks capabilities instead of role names, and how to build a role that fits the job.

chmod 777 makes the error disappear by handing write access to every process on the server. What the three digits mean, the standard WordPress set, and why ownership decides which digit even gets read.

One 3000 by 2000 photo becomes eight files on disk. A 1200 by 800 photo becomes five. Drop your own file in and see exactly which registered sizes fire, which ones core refuses, what dimensions come out and what the whole set weighs.

The media library says 8 MB, the file is 12 MB, and nothing you edit in WordPress moves the number. It is not a WordPress setting at all: core reads two PHP directives and prints the smaller one. Which limit is really stopping the upload, why post_max_size is usually the culprit, how to raise the limits in the order that works, and why a photograph almost never needs a bigger ceiling.

An attachment is a row in wp_posts; its files sit somewhere else, and deleting one does not delete the other. What to measure before you start, why "unused" is so hard to prove, and the order of operations that keeps the site up.

Alt text in WordPress is one postmeta row, copied into the post markup the moment you insert an image. That single fact explains why editing the library changes nothing on pages you already published, why an audit has two halves, and what to fix first.

A watermark can go on the original, on the sub-sizes WordPress generates, or on top at display time. Only two of those put pixels in the file, and only one of them is reversible.

WordPress refuses SVG uploads out of the box, and the snippet everyone pastes works on some servers and not on others. Here is the vector case for wanting one, the exact core check that rejects it, and the sizing bug you inherit once the upload finally succeeds.

An Elementor page lives in one postmeta row of JSON. Where that row sits, why every url in it is absolute, which of the attachment id and the url actually renders, and how to move a site without losing half the images.