Numberer

Some user requested function to add watermark text to every page instead of just page numbers, I implemented this function within 2 hours and replied to the user and gotten another sale 🙌

Got approved by Apple to list in Mac App Store 🙌

I have just finished writing my eBook (https://autolayout.fluffy.es) using Markdown Editor and was preparing to upload it to Gumroad for sale. I noticed the Markdown Editor export PDF function doesn't include page numbers and table of contents. I turned to Google and found few free online PDF tools but I am worried they might save (and potentially leak my book somewhere online). I was wanting to learn macOS app development that time hence I take this as an opportunity to learn macOS app development.