PdfCanvas vs Apryse
Apryse targets document infrastructure at enterprise scale: conversion, rendering, redaction, OCR and server-side pipelines. PdfCanvas targets one job in the browser. Comparing them is mostly about how much surface you actually need.
Choose Apryse when
- You need server-side processing, high-volume conversion or content extraction.
- You need redaction that removes data, OCR or PDF/A compliance.
- You need a commercial agreement, indemnification and enterprise support.
Choose PdfCanvas when
- The requirement is a browser editor for human edits, not a document pipeline.
- You want zero recurring cost and a static deployment with no backend.
- You need to prove that documents stay on the device, with source code as evidence.
Side by side
| Feature | PdfCanvas | Apryse |
|---|---|---|
| License | MIT | Commercial |
| Cost | Free | Enterprise quote |
| Deployment | Static files | Server, client or both |
| Server-side processing | No | Yes |
| Redaction, OCR, PDF/A | No | Yes |
| Support | Community | Enterprise |
| Source available | Yes | No |
The honest summary
If you are replacing a document pipeline, PdfCanvas is not in the same category and should not be on the shortlist. If you are adding a "fix this PDF" button to an internal tool, an enterprise SDK is a large commitment for a small need.
The cost difference is not only the licence: procurement, integration time and maintenance of a commercial SDK all weigh more than a static editor you can read end to end.
Frequently asked questions
+Can PdfCanvas run server-side?
No. It depends on DOM APIs and a browser PDF engine. For server pipelines, use a library designed for that environment.
+Does Apryse work in the browser too?
Yes, it has web components. The trade-off is licensing and bundle size, not capability.
+Is the exported PDF valid?
Yes. Original pages are preserved and overlays are written with pdf-lib. Validate against your own acceptance tests before production.
+What if I need both local editing and server processing?
Use PdfCanvas for the editor and a separate server library for pipelines. They do not conflict.