PDF Constructor vs. PDF-LIB vs. Python vs. pdfmake Comparison Chart

Create and modify PDF documents in any JavaScript environment. Create PDF documents from scratch, or modify existing PDF documents. Draw text, images, and vector graphics. Embed your own fonts. Even embed and draw pages from other PDFs. Written in TypeScript and compiled to pure JavaScript with no native dependencies. Works in any JavaScript runtime, including browsers, Node, Deno, and even React Native. Add, insert, and remove pages. Split a single PDF into separate ones. Or merge multiple PDFs into a single document. Create new forms or fill and read existing fields. Checkboxes, buttons, radio groups, dropdowns, option lists, and text fields are all supported. If you aren't using a package manager, UMD modules are available on the unpkg and jsDelivr CDNs. Note that only some PDF readers can view attachments. This includes Adobe Reader, Foxit Reader, and Firefox. If you are using the CDN scripts in production, you should include a specific version number in the URL.

pdfmake is a PDF document generation library for server-side and client-side usage in pure JavaScript. Print PDFs directly in the browser or delegate them to your NodeJS backend. Use the same document definition in both cases. Forget about manual x, and y calculations. Declare document structure and let pdfmake do the rest. Use paragraphs, columns, lists, tables, canvas, etc. Declare your own styles, use custom fonts, build a DSL, and extend the framework. Line-wrapping, text-alignments (left, right, centered, justified), numbered and bulleted lists, margins, images, and vector graphics. Convenient styling, style inheritance, and custom style dictionaries. Auto/fixed/star-sized/percentage columns widths, col-spans, and row-spans, headers automatically repeated in case of a page-break, non-breaking rows, and non-breaking sections keeping headers and rows together. Static or dynamic content, page numbers, and page count.