A PDF is a container.
A PDF is a container for pages, fonts, images, links and document structure. A simple-looking edit can still affect more than the bit you can see in the thumbnail.
Smart / Local Tools
Generate alt text for an image.
Create a local first draft, add the context the model cannot know, and edit the wording before you publish it.
Accessibility tip: good alt text explains the useful information a sighted visitor gets from the image. Decorative images often need empty alt text instead of a description.
Private by design: the first use may download a model, then the image is described locally in this tab.
Useful to know
Four things worth knowing.
Opening is not the same as correct.
A PDF can open normally while page order, rotation, links, form fields, fonts or print quality are wrong.
Check the changed pages.
Automatic results still need a human check around edges, text, faces and small details.
Keep the source document.
Keep the original PDF until the exported copy has survived the real handoff. For forms, signatures or records, do not overwrite your only source.