Add support for Lab color space to allow clients to import and export documents with Lab color space.

When a document is imported the FontsRepository caches the created font instances for performance reasons. API should be provided for clearing the cached instances in order to reduce memory consumption.

The calculations are wrong, leading to single lines split by the LineSpacing set. As a result, the content of the PDF document is laid out on a bigger number of pages.

Workaround: Change the LineSpacingType to HeightType.Auto.

The checkbox state is not correctly imported when the value is not specified

By specification, the URI property of URI Actions is encoded in 7-bit ASCII string. For this reason, our current implementation relies on that the property will be of type PdfLiteralString. However, in cases such as password-encrypted documents, the property may be encoded with PdfHexString which leads to InvalidCastException: 'Unable to cast object of type Telerik.Windows.Documents.Fixed.FormatProviders.Pdf.Model.Types.PdfHexString' to type 'Telerik.Windows.Documents.Fixed.FormatProviders.Pdf.Model.Types.PdfLiteralString'.', on document import.

AcroForms are not saved when splitting a document into pages. This leads to forms not being recognized when the file is imported back.

An implementation of JPXDecoder should be created to allow the decompression of data encoded using the wavelet-based JPEG2000 standard.

Guidelines of how to provide a custom implementation of the JPXDecode filter can be found in the Customize Rendering section of the documentation and a sample implementation can be found in the SDK examples.

This is not a valid scenario, but Adobe Acrobat handles it and we should too. 

InvalidCastException is thrown when importing a document containing Byte order marks (BOM) at the beginning of the file. The bytes are read as part of the document content and this changes all the document`s offsets.

Hi, i want to export a pdf with the options to disable all permissions except printing, thank you.

Add support for the PAdES-BES signature standard

PdfProcessing: RTL (right-to-left) text is reversed when inserting it directly to a document

Currently, the UseCmap operator is not supported and when trying to import a document using such Cmap an exception is thrown: System.InvalidOperationException: 'Empty CodeSpaceRanges collection.'

From the Part 4: PAdES Long Term - PAdES-LTV Profile (ETSI TS 102 778-4) Specification: 

"Validation of an electronic signature requires data to validate the signature such as CA certificates, Certificate Revocation List (CRLs) or Certificate status information (OCSP) commonly provided by an online service (referred to in the present document as validation data). If the document is stored and the signatures are to be verifiable long after first created, in particular after the signing certificate has expired, the original validation data may no longer available or there may uncertainty as to what validation data was used when the document was first verified."

Can not import blip element with missing embed attribute with DocxFormatProvider. Exception of type System.ArgumentNullException is thrown with the message: 'Value cannot be null.'

When using the PdfStreamWriter to write a PdfPageSource whose content has "Predictor 1" set as DecodeParms an error message is shown when opening the exported document with Adobe reader.

Support import of images defined with v:imagedata element (VML Object) in Docx

PdfProcessing: Invalid annotation position leads to missing content.

From the PDF specification: "The current stroking alpha constant, specifying the constant shape or constant opacity value to be used for stroking operations in the transparent imaging model."

Not respecting it leads to lost image transparency.

The use case we should cover is make stamp or other signatures immovable.