PDF to Long Image
Stitch all pages of a PDF into one tall image, handy for sharing a document in a chat.
PDF documents Client-side pdf.js + Canvas stitching
Tool preview
How to use it
- 01
Drop a PDF.
- 02
Press build.
- 03
Download the long PNG.
Limitations
- ! Up to 20 pages, because browsers cap canvas dimensions.
- ! Pages are rendered at 1.5x, which is readable but not print quality.
FAQ
Why is the image so tall?
Each page is stacked vertically at its own aspect ratio with a small gap between pages.
Can I choose which pages?
Not on this page; the first 20 pages are used.
Is the PDF uploaded?
No.
Files never leave your device
Processing happens in your browser using the File API, WebAssembly and Web Workers. There is no upload endpoint.
Technical details
- Processing
- Client-side
- Implementation
- pdf.js + Canvas stitching
- Category
- PDF documents
- Network requests
- None while processing