syncfusion_flutter_pdfviewer : iOS & android - Certain pdf documents are not loading (grey screen)

[Youssefbenmlih]

Bug description

Certain pdf documents are not working (i upload it here but I get the pdf from a link):
[CS] 2025-01-29 ok.pdf

The document loads well with other packages such as pdfview.

Steps to reproduce

Put code smaple into showModalBottomSheet builder, run with .memory (it doesnt work with memory as well so you can) to use the pdf bytes, if the link of the pdf is needed i would like to give it privatly as it expires every 5 min.

Code sample

Code sample

class SyncfusionPDFView extends StatefulWidget {
  const SyncfusionPDFView(
      {super.key, required this.url, required this.controller});

  final String url;
  final PdfViewerController controller;

  @override
  State<SyncfusionPDFView> createState() => _SyncfusionPDFViewState();
}

class _SyncfusionPDFViewState extends State<SyncfusionPDFView> {
  @override
  void initState() {
    super.initState();
  }

  @override
  Widget build(BuildContext context) {
    return SfPdfViewer.network(
      widget.url,
      pageLayoutMode: PdfPageLayoutMode.single,
      controller: widget.controller,
      onDocumentLoaded: (PdfDocumentLoadedDetails details) {
        debugPrint("PDF Loaded Successfully");
      },
      onDocumentLoadFailed: (PdfDocumentLoadFailedDetails details) {
        debugPrint("Failed to load PDF: ${details.description}");
      },
    );
  }
}

It might be important to note that this widget is called in a showModalBottomSheet.

Screenshots or Video

Screenshots / Video demonstration

here is the behavior :

certain documents do load well though.

Stack Traces

Stack Traces

error :

_description = "There was an error opening this document."
_error = "Error"
description = "There was an error opening this document."
error = "Error"
hashCode = 4076443810
runtimeType = Type (PdfDocumentLoadFailedDetails)
    hashCode = 599428335... etc...

On which target platforms have you observed this bug?

iOS

Flutter Doctor output

Doctor output

Doctor summary (to see all details, run flutter doctor -v):
[✓] Flutter (Channel master, 3.29.0-1.0.pre.209, on macOS 15.2 24C101 darwin-arm64, locale fr-FR)
[✓] Android toolchain - develop for Android devices (Android SDK version 34.0.0)
[✓] Xcode - develop for iOS and macOS (Xcode 16.2)
[✓] Chrome - develop for the web
[✓] Android Studio (version 2023.1)
[✓] VS Code (version 1.96.4)
[✓] Connected device (5 available)
[✓] Network resources

[Youssefbenmlih]

I'm using latest version of package (28.2.4), and tested multiple versions but none work.

[immankumarsync]

Hi @Youssefbenmlih, we are able to replicate the reported issue where the specific PDF document is not loading in the SfPdfViewer widget. Currently, we are validating this issue and will provide further updates once the root cause is identified.

[Youssefbenmlih]

Hi @Youssefbenmlih, we are able to replicate the reported issue where the specific PDF document is not loading in the SfPdfViewer widget. Currently, we are validating this issue and will provide further updates once the root cause is identified.

Any news ?

[immankumarsync]

Hi @Youssefbenmlih,

We have confirmed the issue “TypeError occurs when getting the bounds of the form field in a specific document.” as a defect in our product and we will include the fix in any of the upcoming weekly release. We will notify once the fix is included in the weekly release.

Please use the below feedback link to track the status of the reported bug.
https://www.syncfusion.com/feedback/65279/typeerror-occurs-when-getting-the-bounds-of-the-form-field-in-a-specific-document

Disclaimer: “Inclusion of this solution in the weekly release may change due to other factors including but not limited to QA checks and works reprioritization.”

[sebipirpi]

Hi @Youssefbenmlih, do you have any workaround? Is there something that can be done to the PDF so that the exception doesn't occur?

[immankumarsync]

Hi @Youssefbenmlih,
We have included the fix for the reported issue "TypeError occurs when getting the bounds of the form field in a specific document." in our weekly release (v28.2.9).

Package link: syncfusion_flutter_pdf v28.2.9

**Root cause: **

The reported issue occurs when attempting to retrieve the bounds value of the form fields from a specific PDF document. The bounds value is typically retrieved as a double; however, in our case, an int value appears, leading to an exception.

[Deepak1799]

We are closing this as we believe the issue has been resolved. If you need further assistance or have any additional questions, please feel free to reopen the case or reach out to us at any time.