When using Telerik Document Processing (PdfProcessing) for embedding Factur-X invoices, the produced PDF document is Non‑compliant with PDF-AF / Factur‑X according to the following validator:
https://www.superpdp.tech/outils/validateur-facture-electronique/
Implement the Exponential Interpolation Function in PdfProcessing. Currently, NotSupportedFunctionTypeException is thrown with a message "Function type 2 is not supported."
RadSpreadProcessing expects an integer, instead of boolean. However, according to the specification, it should be boolean:
Add support for strikethrough font effect for cell formatting. Currently this is not supported by the model and is omitted on import.
After merging several PDF documents, some pages are blank indicating the following error:
With the current implementation when exporting a Stitching function all the containing functions are exported as Sampled functions even if they originally have been imported as Exponential interpolation functions, which leads to an increase in the size of the document.
More information can be found in the PDF Specification.
The XlsxPartNames class expects a strict name for reading the comments parts:
public const string CommentsPartName = @"/xl/comments{0}.xml";
However, some third-party tools may change the name to GemComments.xml for example.
MS Excel recognizes this naming for the comments part. It would be nice to provide such functionality in RadSpreadProcessing.
XlsFormatProvider: InvalidOperationException is thrown when importing a document with an unsupported BIFF record.
Workaround: Re-save the file with Excel before importing it.
Add support for creating Tables and applying tables styles (predefined ones or custom).
https://loc.gov/preservation/digital/formats/fdd/fdd000532.shtml
PDF/A‑4f is a version of PDF/A designed for archival storage that:
- Ensures long‑term visual and structural preservation
- Is based on modern PDF 2.0
- Allows embedded files (attachments) that are also archival‑compliant