The signature field preserves information about the time of signing through the TimeOfSigning property of Signature.Properties. However, the DateTime object doesn't keep info about the time zone the document has been signed in. Some customers need to obtain this information.
While signing a document in Adobe Reader, the users can lock the document fields from editing. Expose a similar functionality. The feature is described by the FieldMDP transform method, described on page 736 from the Pdf Reference 1.7
When exporting a document with the .NET Framework implementation, only subsets of the used fonts are embedded in the document. This is currently not available in the Silverlight implementation, and it most probably won't be available in the .NET Standard implementation, as the current implementation is dependent on the WPF font classes. Provide API to plug similar logic when using different platforms as well.
For details: https://www.adobe.com/devnet-docs/acrobatetk/tools/DigSig/Acrobat_DigitalSignatures_in_PDF.pdf This feature is a must have for every business or enterprise! Available in R2 2017 Release
For instance, we may implement WritePageAsync method in addition to the existing WritePage method. This is a similar scenario as in System.IO.StreamWriter class which has WriteLine and WriteLineAsync methods.
Add ability to create, import and modify layers (optional content) in a PDF document.
You can convert the document to PDF and use the approach bellow: Currently, silent async printing may be achieved by using RadPdfViewer WPF control. Sample demo showing how to achieve this may be seen at the following forum post: http://www.telerik.com/forums/pdfviewer-print-makes-ui-unresponsive#js0YdzFWc0Oa8C3g6a18lg The RadPdfViewer WPF control used does not need to be displayed, making this demo a good workaround for ASP.NET AJAX clients.
Currently, a default constant value is used for the font size in this scenario.
Currently, when registering *.otf font file with FontsRepository.RegisterFont method an exception is thrown during the font creation. WORKAROUND: The font file may be converted to TTF format (*.ttf) which is successfully registered. This conversion may be achieved with FontForge by opening the font file and then choosing File -> Generate Fonts -> TrueType -> Generate. More information on FontForge program may be found here: https://fontforge.github.io/en-US/
This allows specifying a soft mask in the external graphics state.
Currently, there is internal API which is used by RadWordsProcessing PDF export functionality. We should consider making appropriate public API which would expose tab stops editing functionality.
Implemented import and export of IccBased, Indexed, Cmyk color spaces. Available in Q3 2015. Available in R2 2018 Official Release version.
RadPdfProcessing currently supports interactive forms whose data is defined directly in the document. Add support for interactive forms based on the Adobe XML Forms Architecture (XFA). The entry is defined inside the interactive forms dictionary and refers to an XML stream containing the information of the form. More information is available on page 722 from Pdf Reference, version 1.7.
This is content stream operator used for setting color in Device, CIE-based or Indexed color space. Available in R2 2018 Official Release version.
Currently, when writing RadFixedPage the page instance reference is cached, as well as its content resources (images and fonts). This cache is important as it allows to reuse pages, images and fonts without writing them multiple times in the result PDF document. However, it needs to be optimized in order to consume less memory. The attached demo shows how to create 2500 pages with big images (different image on each page). With the current version, this demo consumes about 3 GB memory which may lead to OutOfMemoryException. With the optimization that will be introduced in LIB version, the same demo will consume about 20 MB memory for writing this big PDF document. Available in LIB version: 2017.1.320
Text fields should support rich text strings allowing the user to use rich text elements and attributes.
Currently, NotSupportedEncryptionException is thrown when PdfFileSource is initialized with an encrypted PDF file. Available in R2 2018 Official Release Version.