Cannot read properties of undefined (reading 'length')' Error on adding annotation on pdf

[Sid281521674vge]

Hi,

I'm getting the following errors :

'Uncaught TypeError: Cannot read properties of undefined (reading 'length')'

Steps to reprodue :

- on the embedded pdf viewer open the pdf and select a portion of text

- on mouse hover over the selected text, console prints the above message

On further investigating, this is happening when _validateMinLength(propertyName, obj, minLength) in AnnotationValidatoeUtil.js file is trying to valide the minimum lenght of the object.source which is comming as undefined

Any suggestion, how to solve this ?

Thanks

Siddharth

[Bernd Alheit]

What happens when you open the file in Acrobat Reader?

[Sid281521674vge]

Attaching a screen record of the problem.

[Sid281521674vge]

This happens when we save the annotations. We are using Adobe Embed API to embed the pdf reader in our application.
Using the SAVE_API, we save the annotations of the pdf to our database.
Inside that we use getAnnotations to fetch the current annotations to be saved(this is where the error is coming)

Below is the code:

this.adobeDCView.registerCallback(
      window.AdobeDC.View.Enum.CallbackType.SAVE_API,
      async function (metaData, content, options) {
        console.log("inside register callback")
        try {
          await previewFilePromise.then(adobeViewer => {
            adobeViewer.getAnnotationManager().then(annotationManager => {
              annotationManager.getAnnotations()
                .then(result => {
                  setNewAnnotations(result)
                  console.log('annotation:', result)
                }
                )
                .catch(error => console.log(error));
            });
          });
        } catch (e) {
          console.log(e)
        }
        return new Promise((resolve, reject) => {
          resolve({
            code: window.AdobeDC.View.Enum.ApiResponseCode.SUCCESS,
            data: {
              metaData: { fileName: url.slice(42) }
            }
          });
        });
      },
      {
        autoSaveFrequency: 0,
        enableFocusPolling: false,
        showSaveButton: true
      }
    );

Documentation we followed : https://developer.adobe.com/document-services/docs/overview/pdf-embed-api/howtos_ui/#save-callback

[Bernd Alheit]

Try the forum for this API.

[Pranshul281689361etl]

Can you please share with us the url for forums.
It would be really helpful. Thanks in advance!

[Lindsay Knowcode]

I had the same issue. What I found is that the error is not with saving the file. The error is caused in the AnnotationManager.

As a workaround I stopped listening for Annotation events - ie removed this call and the error no longer occurs. Bug in the Adobe code. 

adobeDCView.getAnnotationManager().then(annotationManager => {
                    annotationManager.registerEventListener(