I'm currently developing a PDF editor and keep running into frustrating issues when editing text. It seems that text rendering breaks as soon as the original font isn't available, which leads to inconsistent results across different browsers. I've tried using PDF.js along with canvas rendering, but when I switch to editable HTML layers, the spacing and positions of the glyphs just don't align correctly. Has anyone experienced similar problems? Is there a reliable method to maintain perfect text alignment while editing PDFs?
3 Answers
Editing PDFs can be a real headache. I've been using a tool called Silent Editor for a while now, and I've found that without access to the original document in a format like .docx, achieving pixel-perfect edits is pretty much impossible. If you're curious about my solution, I'd be happy to chat about it and share my tech stack. My site also has some blogs detailing how these technical issues are tackled in various tools, though it's not fully open source. Best of luck, and let me know if you find a good workaround!
Creating a reliable PDF editor is tough because PDFs are intentionally structured in a way that doesn’t support easy editing. The original layout details are often lost, and all you’re left with is minimal data for rendering the text. This makes it naturally unreliable to achieve exact edits without the original document.
It's definitely a struggle! I've faced some of the same challenges. Good luck with your project!
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