The message “Invalid PDF file” is shown Piascore Support February 01, 2018 14:41 When the sheet music file is invalid file, the message is shown. Please check the file and import (or download) it again. Related articles When I try to open file, the app crashes. About "Full upgrade" How to turn a page by gesture (wink) How to turn off blue highlights How to transfer files from iBooks to Piascore Comments 0 comments Article is closed for comments.
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