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1. Please do NOT upgrade to iOS 11 until you have backed up all your sketches.
https://www.sketchbook.com/help/knowledge-base/transfer-legacy-data-files/
iOS 11 is a 64-bit ONLY operating system that runs on A7 processors or higher. This means that if you upgrade to iOS 11, you won't be able to run SketchBook Pro (S logo) or SketchBook Express (SketchBookX) and your files will be lost.
http://www.businessinsider.com/apple-ios-11-32-bit-apps-compatibility-2017-8
2. Here are two solutions for now:
a. Stay on iOS 10.x (you can still use the app(s) and access your files)
b. Upgrade to a newer version of SketchBook (before doing this, please backup our files)
3. Files on iCloud (2.x)
a. Download the latest version of Desktop app (mac or win)
b. Open the files from iCloud and Save As (rename the files) - Save As Tiff
c. Run the latest mobile version (v4.x) and you are able to open the files again.
4. Upgrade info:
- SketchBook Pro 2.x to SketchBook 3.x is a paid update
- SketchBook Pro 2.x to SketchBook 4.x is a paid update
- SketchBook 3.x to SketchBook 4.x is a free update
5. SketchBookX Users:
The free version of SketchBook (iOS/Android) has a similar feature set as SketchBookX.
6. Revert back to iOS 10 Solution
If you have backed up your device before upgrading to iOS 11, you may try to revert back by following the steps here:
https://support.apple.com/en-us/HT204184
7. Contact Support
https://support.sketchbook.com/hc/en-us/requests/new?ticket_form_id=149598
8. Update on 02-08-2018 07:42 AM via David Lau/Jochen S
To get your Sketches in SketchBook Pro (S logo) 2.9 back:
a. Do NOT delete your SketchBook Pro (S logo) from your iPad. If you delete the app, you will delete ALL your sketches on the iPad.
b. Connect iPad to a desktop computer and back your iPad to the desktop computer.
c. Use iExplorer to navigate the backup.
https://macroplant.com/iexplorer/tutorials/how-to-browse-backups-on-iphone
d. There are png files that is a preview of your sketch in the SketchBook folder.
e. There are .data files. This can be opened with GIMP.
https://stackoverflow.com/questions/31868307/open-data-files-as-greyscale-images-in-gimp
This file structure I get from iExplorer when extracting the sketchbook data from my iPad backup is noted below:
com.autodesk.SketchBookPro/Library/Preferences/SBIP:
-rw-r--r-- 1 YOURNAME staff 639420 21 Aug 2015 2015-08-21 06_57_28 +0000.png
-rw-r--r-- 1 YOURNAME staff 4194336 21 Aug 2015 2015-08-21 06_57_28 +0000_0.data

David Lau
Solved! Go to Solution.