we have a bookmark structure with page numbers associated with a PDF and user can navigate throught this structure and jump to particular pages - therefore we need to set the current page of PDF Viewer programmatically.
Moreover we need to know the count of pages of the viewed PDF file. This can be gotten by using PDF processing API, but it is a bit inconvenient to open the PDF file twice just for this purpose especially in case of big PDF files.
Very thanks,
Miroslav
Adding the ability to fill in a PDF online in the PDF Viewer would open a lot of opportunity to the library.
The ability to fill-out, sign, and date would be great with a save callback, so it can be pushed to an API.
This request is for allowing to open other document types in PDF Viewer - for example, Word, Excel. The functionality will target viewing only and not editing.
The steps to handle the scenario will be the following:- Handle the OnOpen event to get the file bytes
- Use the appropriate format provider of the RadSpreadProcessing library to import the Word/Excel file
- Export the file with the PdfFormatProvider
- Pass the converted file to the PDF Viewer to display it
Note: We've registered a bug with this solution. The PDF Viewer does not open other types of documents from the FileSelect in the Toolbar, they can be opened only on initialization of the component. Currently, the bug is in our backlog. Once fixed, the above-listed solution can be used to configure the PDF Viewer for viewing other document types. A knowledge base resource will be published on the matter.
Hallo,
i want to Render PDF Files with the PDF Viewer Component.
The Data of the PDF is already fetched from the API when the PDF-Viewer starts Rendering the Loading animation appears and freezes.
After a few Seconds the PDF will be Rendered.
The size of the PDF File is about 5MB.
We still have some problems with printed pdf quality after the updates in 6.0.0. When pdf is printed using Telerik PDF viewer it seems it gets processed/rasterized and loses quality.
Set the PdfViewer document (data) value to null. As a result, an endless loader will appear.
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ADMIN EDIT
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A possible workaround for the time being is to re-initialize the component after clearing the file: https://blazorrepl.telerik.com/cHYwQola24zzBOAd02.
The loading animation is visible only when a user opens a file from the Toolbar of the component. When programmatically opening a file, the loader is not shown.
Please expose a parameter to show or hide the "Select files..." button inside the empty PDF Viewer.
Currently, a possible workaround is to use CSS:
<TelerikButton OnClick="@OnOpenToggle">Toggle Open Buttons</TelerikButton>
<TelerikPdfViewer Data="@PdfSource"
Class="@HideOpenClass"
Height="400px" />
<style>
.hide-open .k-blank-page,
.hide-open .k-button:has(.k-i-folder-open) {
display: none;
}
</style>
@code {
private byte[] PdfSource { get; set; }
private string HideOpenClass { get; set; } = string.Empty;
private async Task OnOpenToggle()
{
string _hideOpenClass = "hide-open";
HideOpenClass = HideOpenClass == _hideOpenClass ? string.Empty : _hideOpenClass;
}
}
When you search for a term, the document is not scrolled. Also when the user inserts a search term and clicks Enter the document is scrolled to the second match instead of the first one.
