I am working with a requirement for one of the modules in the project(.Net Core) which comprises multiple PDF operations, like converting from PDF to HTML, then editing the HTML in a web view editor, finally converting it into a PDF.

1. Spire pdf


I used existing code samples provided for spire pdf to convert from pdf to HTML and vice-versa. What I find missing in this editing the HTML editor in a web view, which allows me to add text, signature, etc in the editor.

2. Sejda Online PDf editor tool (Javascript)


Developers link: Sejda.com/developers Online tool seems pretty cool but not able to integrate the editor in web view as trying to create token but the website says a user can be only registered with official email ids. Pricing for this library is also a factor. Please find screenshot below :

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3. PDF Tron(Javascript)


I used JavaScript code provided to use a web-based PDF editor. I am able to perform required editing operations with sample files provided like adding text, adding a signature, highlighting text.

Thank you for going through the article, feel free for any more suggestions, I would be happy to try out some more ways to achieve my requirement.

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    – Izzy
    Jul 28, 2020 at 20:41
  • CORS is not a WebViewer issue, that is standard internet security. If you want to access PDF files on localhost, then run WebViewer yourself, its takes just a few minutes to run/host on localhost. See the Manual integration guide. Why is pricing an issue? If something does what you want, well documented, easy to setup, well supported, and saves you tons of time, that has its own value. Note that PDFTron WebViewer is based on the same SDK that powers XODO for Android, which has 4.7/5 from over 250k reviews on Android store. play.google.com/store/apps/…
    – Ryan
    Jul 29, 2020 at 3:33
  • @Ryan thank you for clarification and suggestion, working on resolving the issue. Jul 29, 2020 at 8:05
  • If you have NPM installed, then this is the quickest way to get started locally. pdftron.com/documentation/web/get-started/manually/#run-samples
    – Ryan
    Jul 29, 2020 at 18:58
  • Thanks @Ryan, i am able to successfully run with node js setup, i understood the concept of setting up view viewer in client side, i wish same happens with .net core, as i need to integrate in .net solution i am facing issues of loading a lib Simple_wasm/MemGrow.js.mem and getting error 404, i think i am missing something. Jul 29, 2020 at 19:28


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