PDFTK Builder might be a bit more popular than PyPDF2. We know about 1 link to it since March 2021 and only 1 link to PyPDF2. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
I still haven't needed to do that part in Rust yet, unfortunately. My mother is still using the pypdf-based concatenator I wrote for her years ago. Source: over 1 year ago
Such as a book cover ? Then perhaps it's better to export both as PDFs and use a tool such as PDFTK to join the PDF of the cover with the PDF of your document. Source: almost 3 years ago
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