Bug report

When the PDFViewer is created and a file is loaded using the fromFile method a new thread will be created. That thread remains in memory and doesn't get destroyed when the entire widget is destroyed.
$("#pdfViewer").data("kendoPDFViewer").destroy(); $("#pdfViewer").empty();

Reproduction of the problem

1. Open the Dojo
2. Open the 'Memory' tab in the Developer tools
3. Click the 'Create' and then click the 'Destroy' button

Current behavior

That created thread remains in memory and doesn't get destroyed.

Expected/desired behavior

The thread should get destroyed when the widget is destroyed.

###Workaround
A possible workaround:
kendoPDFViewer.processor.pdf.loadingTask.destroy();

The issue should be additionally researched as there are some leftovers in the JS Heap even when the workaround is used.

Environment

• Kendo UI version: 2022.3.913
• Browser: [all ]

I have experience with OpenText Brava Enterprise. I've had the chance to integrate their Viewer in our in-house document management system. This viewer opens up to 100 file formats and allows to add/remove/edit annotations on files and saves these annotations as a separate layer on top of the file. So next time you open the same file to view, you can load the annotations (via API) calls and place the layer of annotations on top.

I was hoping I would see the same thing with Telerik PDF Viewer (and I am aware this works only for PDF). To allow the user to add a Text comment, Shapes, Stamps, Image, PDF Bookmark, etc.

Bug report

In PDFViewer, underlines increase size when zooming in/out.

Reproduction of the problem

1. Open the PDFViewer Basic Usage demo - https://demos.telerik.com/kendo-ui/pdfviewer/index
2. Open the attached file.
3. Zoom in to 300% and then out to 50% several times.

Current behavior

The underlines increase their size.

Expected/desired behavior

The underlines should remain the same.

Environment

• Kendo UI version: 2022.1.119
• Browser: [all]

Bug report

When opening the Zoom ComboBox in the PDFViewer, the value is changed to NaN.

Reproduction of the problem

1. Open this Dojo example - https://dojo.telerik.com/@martin.tabakov@progress.com/OCEpaCUr/2
2. Open the Zoom ComboBox.

Current behavior

The value is changed to NaN.

Expected/desired behavior

The value should match one of the ComboBox items.

Environment

• Kendo UI version: 2022.1.119
• Browser: [all]

Tools' tooptips are localized and can be modified via messages. However, the tools in the overflow menu (when window size is resized) have the original tool text. 

Example: https://dojo.telerik.com/@iankodj/inuWOTUv

The print functionality does not work when using chrome on android and safari on iphone. 

I tested at the url https://demos.telerik.com/kendo-ui/pdfviewer/index

Please advise.

Bug report

When trying to print a file from the PDF Viewer, if the user wants to use the system print dialog, the printing dialog gets closed, but the system dialog does not appear.

Reproduction of the problem

1. Open the Pdf Viewer Demo
2. Click print
3. Then scroll and select "Print using system dialog"

Current behavior

The printing dialog gets closed and the system dialog does not appear. (screencast)

Expected/desired behavior

The system printing dialog should appear

Environment

• Kendo UI version: 2020.3.1118
• Browser: [Chrome | Edge ]

.

Currently, the feature for open a pdf with password protection it's not supported, any solution for this, is necessary because many pdfs use security for confidentiality.

Bug report

Opening a valid PDF file after trying to open a corrupted PDF file in the PDF Viewer throws a JavaScript error. As a result opening a valid PDF file is not possible.

Uncaught TypeError: Cannot read properties of null (reading 'sendWithStream')
    at PDFPageProxy.streamTextContent (api.js:1114)
    at PDFPageProxy.getTextContent (api.js:1132)
    at init._renderTextLayer (kendo.all.js:170740)
    at init.render (kendo.all.js:170727)
    at kendo.all.js:171384
    at Array.forEach (<anonymous>)
    at r.exec (kendo.all.js:171381)
    at init.execute (kendo.all.js:171959)
    at init.zoom (kendo.all.js:171949)
    at init.fromFile (kendo.all.js:172026)

Reproduction of the problem

1. Navigate to the PDFViewer Demo
2. Open a corrupted PDF file, for example CorruptedPdfFile.pdf
3. Try to open a valid, working PDF file

Screencast

Current behavior

A valid PDF file cannot be opened after a corrupted file was loaded

Expected/desired behavior

It should be possible that a valid PDF file can be opened after a corrupted file has failed to be opened.

Environment

• Kendo UI version: 2021.3.914
• Browser: [all]

Dear Team,

As like in other frameworks (https://pspdfkit.com/) we should have the in built option to rotate the PDF pages using Kendo UI PDFViewer widget.

https://web-examples.pspdfkit.com/annotations?i=7KSM53H6QBTN7G45WA030T9C0R.C3YbvdyO2FG3Et1PMQ1btA.KV3y

Regards,

Velusamy

Bug report

Currently the result of PDFViewer printing is affected by PDFViewer scale option. When scale is less than 200%, the letters in the printed PDF appear blurred.

Reproduction of the problem

1. Go to https://demos.telerik.com/kendo-ui/pdfviewer/index
2. Set scale option to 100%
3. Print to PDF using "Microsoft Print to PDF" printer. (The final result is the same compared to actual printing to a physical printer)
4. For consistency set the following print options, e.g. in Chrome:

• Paper size: A4
• Pages per sheet: 1
• Margins: None
• Scale: Default

Current behavior

Text in printed PDF file is blurred

Expected/desired behavior

Text in printed PDF file is clear.
NOTE: Clear text may be achieved if PDFViewer scale option is set to 400% on the demo before printing.

Environment

• Kendo UI version: 2019.3.1023
• Browser: all

Additional blank page is added in Chrome when printing a file with specific size.

A reproduction file for the problem can be found in Ticket ID: 1521806.

Hello,

i have some problems with the updated pdf viewer.

Print

The new print feature failed after the second print call.

Reproduction steps

1. call https://demos.telerik.com/kendo-ui/pdfviewer/index
2. click on print
3. abort browser print dialog
4. call again, there is no content in the print dialog preview or output

Search

Furthermore the search wont work for me, i get only an browser alert and console log entry.

console log on init

console log on search

Uncaught TypeError: Cannot read property 'matches' of undefined

I try to show the pdf viewer in an kendo window, is there any problem known?

Beste regards

Christian

Hello,

Could you help me how we can turn on Selection on PDFViewer in jQuery Solution ?

https://demos.telerik.com/kendo-ui/pdfviewer/index

In the above solution I can not select any of the below options.

Best Regards

Pawel

The PDF.js library supports sending xhr with credentials. Please expose this option so credentials can be specified.

Hello,

I have an 8mb PDF files that I need to be able to search, however when I click on the search tool the entire page starts responding.

This issue happens in your hosted demo. It seems to come as a result of images in the PDF.

What do I need to do to have it work properly?

Thanks,

Greg