Allow to password-protect a workbook, so that it cannot be shown (read) without the password.
Currently, signature flags, represented by the 'SigFlags' optional entry, are not imported and exported, and there is no API for setting them.
As a result, documents signed with RadPdfProcessing (or with RadPdfViewer) appear in Adobe Reader without the blue document message bar at the top (the analogue of the RadPdfViewer's SignaturePanel).
If the API is supported, setting the flag to 1 or 3 would ensure that the message bar would be visualized in Adobe Reader.
Add support for setting and exporting document metadata, like Title, Author and similar.
Provide a way to change the Name of a FormField from the RadDocument.AcroForm.FormFields collection. As a workaround, you could create a new instance of a FormField with the desired name, add the new field in the document and remove the old one. You can use the following approach: 1) Create a new instance of FormField (with the desired name, passed in the constructor), which will play the role of a copy of a specific FormField 2) Copy all properties from the original field (they all vary, depending on the concrete type of the FormField, for example CheckBoxField, etc.) 3) Create a new widget for the new field, and copy all properties from the original field's widget into the new one. 4) Remove the original field from the RadDocument.AcroForm.FormFields collection and add the new field. 5) Remove the original widget from the corresponding page's annotation and add the new one. Attached is a project demonstrating this approach for a CheckBoxField.
At this point the PdfFormatProvider does not support floating images and these elements are skipped when exporting to PDF. The feature is trivial for floating images with "Behind Text"/"In Front of Text" settings, but otherwise floating images are affecting the text layout in complex ways.
When a HTML has a wrong encoding set (content="text/html; charset=utf-16") we use the UTF-16 encoding when importing this HTML. This leads to wrong import. Microsoft Word detects that the set encoding is wrong and uses UTF-8 instead so that the imported result is correct. The HTML5 specification forbids the use of the meta element to declare UTF-16, because the values must be ASCII-compatible: https://www.w3.org/International/questions/qa-html-encoding-declarations#utf16
Provide the ability to work with images in headers/footers of a worksheet. Note that large images put in headers are visualized as watermarks on printing/exporting to PDF.
The CropBox is currently not supported by RadFixedPage class and is not preserved on an Import-Export scenario with PdfFormatProvider. CropBox is also not supported by PdfPageSource class and it is not preserved by using PdfStreamWriter as well. This property should be implemented in both scenarios.