Wasm memory out of bounds on Webviewer versions 7.1 and 7.2 but not in version 6

When we getFileData() and merge multiple PDF blobs into one single PDF file we get a Memory out of bounds error on Webviewer versions 7 on some computers.

However we don’t get this problem at all on versions 6.

Browser Chrome.

I need your help please to solve this problem.

Capture d’écran 2020-12-03 à 13.40.58.png

Hi laurent ,

Thanks for contacting us for support.

To diagnose further on this error, we require the following information.

  1. The JavaScript source code of how you use getFileData() to merge multiple PDF blobs into one.

  2. The PDF files that you used.

  3. Can you reproduce the issue using other PDF files?

  4. Besides Google Chrome, does the issue also occur on other browsers?

  5. Are you using WebViewer Server?

Please let us know the answer to the questions above, especially #1 and #2, so we can reproduce on our side.


Oscar Zhang

Software Developer
PDFTron Systems Inc.