Pretty simple question. I play clarinet and a few other reed instruments. I don’t play flute. In being asked to play occasional musicals the reed book I get most often will have some flute parts. Is there a computer program ( or iPad app) that will will let me I put a picture or PDF image of a flute part, and after completing a transposition, let me print out the results as a clarinet part?
The 'Photoscore Lite' that comes free with Sibelius will cope with a single-instrument page. But it's not an auto-magic solution. You may find it useful in getting the notes into a Sibelius file. Very often it's quicker to enter them manually.
Once in Sibelius, it's trivial to take a Flute stave, add a Clarinet stave below it and copy/paste the contents across. As long as the staves are defined correctly, transposition will be automatic.
If you're prepared to forget the 'scan and read' part - which really won't save you THAT much time, if any - MuseScore will be fine. And it's free.