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.
For example, when some PDF file has uncompressed contents we may import it and apply better compression to the stream objects. Ensure that all the content inside the document is compressed.
Currently, we have the following options for PDF export optimizations:
pdfFormatProvider.ExportSettings.ImageQuality = ImageQuality.Low;
pdfFormatProvider.ExportSettings.ImageCompression = new ImageFilterTypes[] { ImageFilterTypes.FlateDecode };
pdfFormatProvider.ExportSettings.StreamCompression = new StreamFilterTypes[] { StreamFilterTypes.FlateDecode };
pdfFormatProvider.ExportSettings.FontEmbeddingType = FontEmbeddingType.Subset;
Add support for shapes, and especially for shapes with textual content. In OOXML, shapes are represented by the wps:wsp element, and shapes with textual content by <wps:txbx>, <w:txbxContent>. Such shape can be added to a Word document using the Insert -> Text -> Text Box -> Draw Text Box, or through a shape's context menu -> Add Text. Do not confuse these shapes with Text/Rich Text content controls (see https://feedback.telerik.com/Project/184/Feedback/Details/190057 )
At this point, the justify alignment is not supported. Provide the ability to export text with this setting.
This functionality is dependent on PdfProcessing: Provide API for setting the text alignment to Justify
They are exported with the /EmbeddedFiles switch. This would allow adding external files to the PDF document.
If a worksheet spans more than one page, you can print row and column headings or labels (also called print titles) on every page to ensure that the data is properly labeled.
Implement nested mail merge and master-detail scenario.
This feature includes: table of figure, table of tables etc. TOC field contains PageRef fields inside it. To update it, we will need pagination (layout) support and PageRef fields implementation. Also TOC update can be influenced by TC fields presence in the document. Implement export to PDF.
Implement support for content controls (a.k.a. Structured document tags), which will allow inserting editing controls in the document: - Rich Text - Plain Text - Check Box - Combo Box - Drop-down list - Date picker Do not confuse this feature with form fields support (see https://feedback.telerik.com/Project/184/Feedback/Details/219850 ).
Currently, for .NET Framework scenarios, this could be achieved using RadPdfViewer's WPF control ThumbnailFactory class. Sample code may be seen at this forum post: http://www.telerik.com/forums/pdf-thumbnail-returns-transparent-images#jO33X-E8Cki_qLh_KsToWg.
The feature should be implemented for .NET Standard as well.
In addition to the fast document generation, the SpreadStreamProcessing can be adapted to import documents significantly faster than SpreadProcessing.
Implement importing and exporting the javascript actions associated with push button fields so that they can be executed when the exported document is opened with Adobe Acrobat. Javascript actions are also used by text fields for text validation (for instance for date input).
Support for forms. The feature is named 'Interactive forms' in the PDF specification. Main scenarios to consider: - Reading of the data in the forms. - Writing data to the forms. Available in R2 2017 Release
The API should allow you to perform a text-based search and return the parent element(s) of the result(s) or directly the found element(s).
Add support for documents containing RTL (right-to-left) text.
The attached sample project below demonstrates a possible workaround for PAGE and NUMPAGES fields when exporting to PDF. The demo shows how to generate document from scratch containing PAGE and NUMPAGES fields and export it to PDF.
Add support for a strikethrough property or strikethrough-related properties in the TextProperties class.