= Signature =

== Digital signed ==

 * https://www.zi.uzh.ch/de/support/geschaeftsapplikationen/Skribble.html
 * Before use: Check the FAQ on the page.

== Manual paste a graphic into the PDF ==

=== Create a scanned signature ===

 * Write your signature on a sheet and scan this.
 * If your scan is not an image file (png, jpg, gif, tiff,...) than open it and make a screenshot (flameshot on thinlinc) and save that one as an image.
 * Remove the white background so it becomes transparent - than it's quite easy to paste it in your PDF

   * In thinlinc, with the file manager, with mouse over the file choose 'remove background' > you get a new <file>.transparent.trim.png

{{attachment:removebackground.png}}

=== Paste the scanned signature to the PDF ===

 * In thinlinc open the program `Xournal++`.
 * Drag and drop the signature image to the right place, size and reposition it.
 * Export the file as PDF

   * Unfortunately, xournal++ complains if the exported file has the same filename as the original one - choose a different one.