Well - meanwhile I solved it … kind of
- create multipage PDF in A4 200 dpi format
- draw one photo per page (scaled/centered)
- use AppleVision / Google ML to OCR the photos and get Position/Rect for each Text and the text
- DrawString transparent at the correct position as a „Textlayer“
Still have trouble „stretching“ the DrawText to always fit perfectly inside the box so that selecting it later in a PDF Preview feels natural
… so … any Tipps? #dotNetMaui #ios #android #development