u/magic_notetaker

Thanks for this API. It is really quite powerful already. What works great is creating textboxes and other objects on different pages of the note. But currently, it seems there is no option to also create a textbox that is a header. This would be powerful for my use case (basically importing markdown files into a note for detailed review, annotation, and editing. Currently, you cannot navigate to another page, nor lasso something on another page; any of these would be necessary to create a heading from an existing textbox object. It would be great to enable creating a heading directly from a collection of objects, or at least from a certain textbox on any page. u/Dunn_sn

I’ve published an experimental Supernote NOTE plugin called Textbox Helper.

It focuses on structured editing of textboxes inside notes. Current features include:

• splitting a textbox into smaller sentence-based textboxes
• joining selected textboxes in reading order
• cleaning repeated spaces and removing manual line breaks
• importing plain text into NOTE textboxes
• scanning textbox content and exporting it to DOCX
• applying handwritten edit markers, including delete markers and early replace-marker support, with preview before changes are applied

It is still beta software, so I would recommend testing it on copied notes first.

For developers, the src/shared folder may be useful beyond this plugin. It contains reusable helper code for working with Supernote textboxes, including:

• textbox geometry and reading-order sorting
• page-space rectangle and overlap calculations
• native text-layout measurement wrappers
• textbox height estimation and resizing
• hit testing from page coordinates to measured text lines and words
• pagination and textbox insertion helpers

My hope is that this can be useful both as a practical plugin and as reference code for people building Supernote plugins that work seriously with textboxes.

GitHub: https://github.com/tilmanbergt/textboxHelper

Please give your feedback and suggestions!

Note: I am asked to "Use appropriate Post Flairs to make it easier for others to search." but I see no way in the creat post screen to add a flair, I can add 3 types of tags, but they do not apply. Not quite getting this...