When importing a document with a missing "endobj" operator, an exception is thrown: InvalidCastException: 'Unable to cast object of type 'Telerik.Windows.Documents.Fixed.FormatProviders.Pdf.Model.Types.PdfInt' to type 'Telerik.Windows.Documents.Fixed.FormatProviders.Pdf.Model.Types.IndirectObject'.'

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

Add support for GoToR action

Note: related item: PdfProcessing: Introduce functionality to preserve GoToR actions during import/export

When exporting the PDF content to plain text, the form fields and their values are not extracted. It would be nice to have an option to include the content in the form fields as well.

I have a simple program that imports a PDF, calls AcroForm.FlattenFormFields(), and calls Export() on the PdfFormatProvider. I am seeing the following exception during Import() on a signed W9 form a customer has uploaded into our system. Due to the sensitive nature of the document I cannot upload it, but below is the Sig section. I have tried other example signed PDFs which seem to work fine (See attached)

39 0 obj
<< /Type /Annot /Rotate 0 /AP 180 0 R /Rect [ 105.8515 149.2023 289.4443 261.1185
] /Border [ 0 0 0 ] /M (h<D[×¥\001.ƒ¶AB}«\006iÚ¿E@\024_”W±ÔÃ\030ÙL\020"É]a\012Ú6¡0\000¶Žm1@Ž)
/C [ 1 ] /DA (h<D[×¥\001.ƒ¶AB}«\006.\023âø‰\035\005íöu\002ÊÒ½ùwË@—‹måÿڏ[ ‹í!¨\001)
/F 4 /Subtype /Sig >>
endobj

 

Exception

System.NotSupportedException: 'Import of annotation with type Sig is not supported.'

Stack Trace

at Telerik.Windows.Documents.Fixed.FormatProviders.Pdf.Model.Elements.Annotations.AnnotationFactory.CreateUnsupportedAnnotationObject(PdfName type)
   at Telerik.Windows.Documents.Fixed.FormatProviders.Pdf.Model.Converters.TypeAwareConverter`1.CreateInstance(Type type, PostScriptReader reader, IPdfImportContext context, PdfDictionary dictionary)
   at Telerik.Windows.Documents.Fixed.FormatProviders.Pdf.Model.Converters.Converter.ConvertFromDictionary(Type type, PostScriptReader reader, IPdfImportContext context, PdfDictionary dictionary)
   at Telerik.Windows.Documents.Fixed.FormatProviders.Pdf.Model.Converters.Converter.Convert(Type type, PostScriptReader reader, IPdfImportContext context, IPdfPrimitive value)
   at Telerik.Windows.Documents.Fixed.FormatProviders.Pdf.Model.Converters.Converter.Convert(Type type, PostScriptReader reader, IPdfImportContext context, IPdfPrimitive value)
   at Telerik.Windows.Documents.Fixed.FormatProviders.Pdf.Model.Types.PdfCollectionBase`1.ConvertElementToType[T](PostScriptReader reader, IPdfImportContext context, IPdfPrimitive element)
   at Telerik.Windows.Documents.Fixed.FormatProviders.Pdf.Model.Types.PdfCollectionBase`1.TryGetElement[T](PostScriptReader reader, IPdfImportContext context, TIndex index, T& element)
   at Telerik.Windows.Documents.Fixed.FormatProviders.Pdf.Model.Elements.DocumentStructure.Page.<>c__DisplayClass21_0.<CopyPageAnnotationsTo>b__0()
   at Telerik.Windows.Documents.Fixed.FormatProviders.Pdf.ExceptionHandling.ExecutionHandler.TryHandleExecution[E](Action operation)

 

 

Introduce Sanitize Document functionality.

https://experienceleague.adobe.com/en/docs/document-cloud-learn/acrobat-learning/advanced-tasks/redact
https://helpx.adobe.com/acrobat/using/removing-sensitive-content-pdfs.html

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.

Handwritten Signature is a type of biometric signature that relies on capturing unique biometric data from a person's handwritten signature.

Incorrect positioning of Right-to-left (RTL) numbers.

Mangled Right-To-Left (RTL) content when multiple lines of text are drawn.

This property should work similar to PreferredWidth cell property but in vertical direction.

Implement support for adding barcodes to a PDF document.

NullReferenceException is thrown when exporting pages containing images with missing optional ColorSpace.

Optical character recognition or optical character reader (OCR) is the electronic or mechanical conversion of images of typed, handwritten, or printed text into a machine-encoded text from a scanned document.

Add support for Named Actions.

NullReferenceException has thrown when importing a form XObject with null Resources in PDF dictionary.

ArgumentNullException is thrown when importing a document with missing indirect reference object.

"An error exists on this page. Acrobat may not display the page correctly." error in Adobe when inspecting a page with DeviceGray ColorSpace image after import-export.

RadPdfProcessing currently supports interactive forms whose data is defined directly in the document. To preserve them when importing and exporting documents, add support for import-export interactive forms based on the Adobe XML Forms Architecture (XFA).

From PDF 2.0 the XFA forms are depreciated.

Following the steps:

1. Create two PDF documents that contain form fields where the name contain a period, e.g. "person1.name".

2. Merge the two documents:  https://docs.telerik.com/devtools/document-processing/libraries/radpdfprocessing/model/interactive-forms/form-fields/formfields#merging-documents-with-form-fields