Loading a document that contains big images could lead to OutOfMemory exception.
RadPdfViewer partially supports CCITTFaxDecode (that is basically TIFF). There are some limitations that are not supported at this stage like EncodedByteAlign = true or Group 3, 2-D encoding.
Bitonal image scaling algorithms which improve the readability of bitonal, black and white images. Due to the lack of colors within the palette of 1-bit black and white images, they become splotchy and distorted when zoomed in or out
They are used by the page and the XObjects drawn on it and deal with the overlaying of the colors. These groups are described on page 556 of PdfReference 1.7.
Import documents that use this type of encryption. Currently, a handled NotSupportedEncryptionException is thrown while importing such a document and it cannot be opened in RadPdfViewer. Available in R1 2018 Official Release version.
Dialog for inputting the password should be implemented in order to be able to decrypt the file content.
The feature was implemented for Q2 2014.
The fix will be available in our official release Q1 2016.
We have a good news for all of you who have experienced problems with the memory consumption of RadPdfViewer. We have made significant optimization of what is cached for each page when scrolling in a document. Please have in mind that when using big images in a document the optimization may seem not so significant. This is because there is additional opportunity to further optimization of the caching mechanism for the image sources. I have logged this additional opportunity as a different feature request. Here is a link if you would like to subscribe for status updates of that item to: Optimize the image source cache - http://feedback.telerik.com/Project/143/Feedback/Details/189305-optimize-the-image-source-cache
Printing document on a machine with .NET Framework 4.6 installed does not work for some documents. Currently, an issue is opened at Microsoft Connect: "Printing with PrintDialog fails when .NET 4.6 is installed" (https://connect.microsoft.com/VisualStudio/feedback/details/1980419/printing-with-printdialog-fails-when-net-4-6-is-installed). Workaround: In the attached project.
Add support for importing and filling interactive forms. Interactive Forms content is visualized read-only in RadPdfViewer UI with R1 2017 Release Available in R3 2017 Official Release Version.
When this feature is implemented it should visualize the bookmarks similarly to in the attached screenshot. Available in R3 2018 Official Release Version.
Create appropriate methods, properties and events that will allow to users to scroll the RadPdfViewer and handle the scrolling events. Introduce API that will allow to manipulate the scroll bars.
As a <role> I want <ability> so that <benefit>.
When using CTRL+Mousewheel to zoom in to a PDFViewer document, it should zoom into the point where the mouse pointer is located. Currently it just does a simple zoom of the whole document. For example see Acrobat Reader or Google Maps.