PdfWritter. Web editor, from text to PDF

Problem

Text pasted from a PDF, ChatGPT or an email arrives with what breaks the layout: forced line breaks, split words, page numbers, invisible characters, broken bullets. PdfWritter spots them, fixes them in one click and gives you the PDF directly.

Decisions

• An editor in the browser: you write text, you get a PDF.
• Everything runs in the browser: the text never leaves the machine, no server.
• Pure, tested cleaning rules, applied to the document itself to keep bold, italics, headings and lists.
• A PDF with real, selectable text (pdfmake), loaded only on click because the fonts are heavy.
• Unit tests, including 2,000 random texts, and end-to-end tests in Chromium.

Result

Both test suites pass. The repository is private.

What’s not done yet

• Not deployed yet.
• Importing a PDF file directly (pdfjs-dist) to recover real paragraphs, columns and headings: copy-paste only gives raw text.
• Emoji, Arabic and Chinese are not in the PDF font; the tool warns before export.
• Repeated page headers and sentences split across two paragraphs are not handled.