Form inputs display issues on Safari

[lcgiry]

ngx-extended-pdf-viewer version : 18.1.14
Angular version : 15

Hello,

We are experiencing some issue with PDFs containing forms on Safari. When some inputs are filled, their value is not always displayed. When not displayed, resizing the window make the input values blink but they are still invisible when resizing is done.

In the two following screenshots, we used the same ngx-extended-pdf-viewer configuration. On is part of a Material Dialog that opens in full screen, and the malfunctioning one is part of a page.

You can find attached the PDF used for this tests.
Thanks !

    <ngx-extended-pdf-viewer
      [src]="'/assets/Mouvement n°4 - cerfa n°2759-SD.pdf'"
      [disableForms]="true" 
      [showToolbar]="false" [sidebarVisible]="false" [showUnverifiedSignatures]="true" [showBorders]="false" [ignoreKeyboard]="true" [backgroundColor]="undefined" [enableDragAndDrop]="false" [enablePrint]="false" theme="dark">
    </ngx-extended-pdf-viewer>

Nominal behavior

Malfunctioning viewer

Mouvement n°4 - cerfa n°2759-SD.pdf

[stephanrauh]

Strange. The forms are displayed correctly on other browsers?

[stephanrauh]

And how did you fill the input fields? Via Angular or via user input?

[lcgiry]

Yes, the input fields are displayed properly on every other browser we tested (Firefox, Chrome and Edge).
We filled the inputs using pdf-lib and tried to edit them directly in ngx-extended-pdf-viewer, it doesn't seem to change anything.

[walweh]

I'm facing the same issue with form fields not displaying properly. Any updates or solutions?"

[stephanrauh]

Not yet. Can you give me any hint on how to reproduce the issue?

[walweh]

• The issue primarily occurs on the second attempt (for me) to open the PDF in ngx-extended-pdf-viewer.

• Forms within the PDF are not visible initially, but they can still be filled out.

• When zooming in, the forms briefly appear but then disappear.

• When using the pageViewMode set to infinite-scroll, the PDF forms are initially visible upon opening the document.

• However, the issue arises when zooming in: the forms briefly appear but then disappear.

• This problem does not occur when zooming out; the forms remain visible during zoom-out operations.
  after zooming in, the forms appear to go under the document content, becoming invisible but you can still fill them.

also testet it with the document of @lcgiry

I hope it helps a little

[walweh]

[walweh]

I moved the layer a bit so you can see what I mean