Misc
Blackboard Template for GoodNotes
Blackboard Template for GoodNotes
The following pdf files are blackboard-colored.
They can be used to generate blackboard-like pages in GoodNotes (and in similar applications, probably).
If the page size A4 does not fit to your environment, you can rewrite the following tex files to change them as you like.
A4 Landscape (white vertical line at the middle) pdf tex
How to use:
Save the pdf file in iCloud.
At Documents in GoodNotes, tap setting (gear wheel at the upper-right), Notebook Templates, Import (at the right-endpoint of ESSENTIALS or WRITING PAPERS would be appropriate), From Files, and the pdf file.
Then you can find a blackboard-like page when adding pages or creating a new notebook.