[Lawrie]

Long press a song to select it on the library screen, then tap "Edit Song" in the action bar. Go to the Files tab, tap the three dots next to the file in the list and tap "Image Correction". MobileSheets is going to need to first render an image for every page in the entire PDF. It then will process every one of those rendered pages to apply the image correction to it. Just be aware that if you do this with a 274 page PDF, for example, it's going to take an extremely long time to process every page. 

Mike

Hi Mike,
finally had some time to set aside for this big PDF only to find that t'ings ain't what dey appear...
So, to confirm, my process was:

1. Change to the relevant library
   
2. Open the collection that uses the 274 page PDF
   
3. Long press a song (any song... - happened to be the 55th one)
   
4. A check mark appears against the song
   
5. Press "Edit Song"
   
6. Press Files tab
   
7. The correct PDF is listed.
   The display shows:
   Page Order: 13
   Number of pages: 1
   Page slider says 1/1
   seems OK
   
8. Press the "3 dots" and select Image Correction
   
9. Message "Generate pages 1 of 1 appears, image is cleaned up, and stops there...
   I was expecting it to process every page - did I get that wrong?
   
10. press 3 dots at the top and select cancel and screen reverts to the previous one.
    
11. *Not game to save anything just in case... So press cancel again and discard changes.
    

Tried this several times with various songs on different pages and always got the same result.  
Have I made any errors in the process?

* The reason I'm not game to save anything as the very first time I tried this I used the first song in the list and did save.  After that the 74Mb PDF was about 500k but it took me a while to notice...  Every song I tried to select was on the first page 'cos that was all that was left in the PDF.
I ended up having to delete the songs from the database, replace the PDF, and the csv for good measure, and reimport.  This took a couple of goes too before it worked   

Could the PDF be faulty even though MS correctly selects pages when using the PDF for performance (and does again now I replaced it after the screw up)?

Thanks Mike