Approved
Last Updated: 14 Oct 2019 17:31 by ADMIN
Created by: Narendra
Comments: 0
Category: PdfProcessing
Type: Feature Request
0
These permissions are defined on a document level and apply permission handlers. The permission handlers are similar to the security handlers but do not require the document to be encrypted. They are also used to determine which objects are to be included in the digest calculation used for the digital signature functionality.
Approved
Last Updated: 10 Oct 2019 14:09 by ADMIN
By specification the destination string can be a string of up to 512 bytes. However, the current implementation supports strings of up to four bytes which leads to: ArgumentOutOfRangeException: 'bytes should be less or equal than 4.Parameter name: bytes'.
Declined
Last Updated: 15 Oct 2019 17:38 by ADMIN

I was working on some acroforms and wherever I needed a space I kept on getting a different letter (Ê). On debugging the problem seems to be in the TryGetCharCode function of OpenTypeFontSource

Version: 2019.3.917

Below is copy of function

public override bool TryGetCharCode(int unicode, out int charCode)
        {
            bool result = false;
            ushort glyphId;
            charCode = CMap.MISSING_GLYPH_ID;
            if (this.TryGetGlyphId(unicode, out glyphId))
            {
                ushort uCharCode = CMap.MISSING_GLYPH_ID;
                CMapTable table = this.CMap.GetCMapTable(3, 0);
                if (table != null)
                {
                    result = table.TryGetCharId(glyphId, out uCharCode);
                }

                table = this.CMap.GetCMapTable(1, 0);
                if (table != null)
                {
                    result = table.TryGetCharId(glyphId, out uCharCode);
                }

                charCode = uCharCode;

                return result;
            }

            return false;
        }

The font used has 2 cmap tables: one with platformid of 3 and encodingid of 1, the other with platformid 1 and encodingid 0. According to https://docs.microsoft.com/en-us/typography/opentype/spec/cmap platform id 3 and encoding 1 is correct for windows so not sure why the first call to getcmaptable looks for encodingid 0.

Second of all even if I change it to the following

CMapTable table = this.CMap.GetCMapTable(3, 1);

if there is a second cmap with platformid of 1 whatever the result of the call with regards to platformid 3, the result will be overridden

I can say that if I add some checks so that if the first call succeeds it doesn't attempt the 2nd I do get the expected behaviour in the pdf and get spaces

 

As a note the FontFamily property of the OpenTypeFontSource is "Arial"

Approved
Last Updated: 04 Oct 2019 13:36 by ADMIN
Created by: Rick Kauwen
Comments: 0
Category: PdfProcessing
Type: Feature Request
1
This feature is currently supported only for the .NET Framework and .NET Core applications for Windows.
Approved
Last Updated: 01 Oct 2019 11:43 by ADMIN
If ImageInline's size is set through its Size property and not through Height or Width, the given size is not respected on export.
Approved
Last Updated: 23 Sep 2019 17:19 by ADMIN
When there is a destination object in a RadFixedDocument and it doesn't have page set (it is null), an exception is thrown. However, this is supported by Adobe and it is not forbidden in the Pdf specification.
Approved
Last Updated: 20 Sep 2019 14:43 by ADMIN
According to the specification, the startfref keyword must be followed by the offset the xref table start on, defined on a new line. Some documents, however, have both entries defined on the same line, which leads to InvalidOperationException with message "Stack empty" while importing. Make sure this case is handled in PdfProcessing as well.
Approved
Last Updated: 09 Sep 2019 17:18 by ADMIN

When a TrueType font is defined, the mapping of character codes to glyph indices depends on the built-in cmap table mappings defined in the font and the Encoding property defined in the PDF dictionary.

However, the current implementation maps all characters with cmap tables for Microsoft Symbolic and Macintosh Roman, which causes incorrect mapping results, e.g. space characters are mapped to an Ê glyph.

The issue is also described in the following public item: TryGetCharCode for OpenTypeFont uses wrong cmap and returns wrong charcode.

Workaround: Change the font  of the TextBoxField's widget appearance:
foreach (var widget in field.Widgets)
{
    widget.TextProperties.Font = FontsRepository.Helvetica;
}

Completed
Last Updated: 17 Oct 2019 05:57 by ADMIN
Release R3 2019 SP1
By specification when a form field is merged with the dictionary of the widget annotation, a Kids parameter can be existent if there are more than one widget annotations for that field. Support for importing such a fields should be added. 
Completed
Last Updated: 17 Oct 2019 05:57 by ADMIN
Release R3 2019 SP1
By specification the widget annotation and its content can be merged into the field dictionary. When merged widget with Kids property is imported an InvalidCastException: 'Unable to cast object of type 'Telerik.Windows.Documents.Fixed.FormatProviders.Pdf.Model.Elements.Annotations.WidgetObject' to type 'Telerik.Windows.Documents.Fixed.FormatProviders.Pdf.Model.Elements.Forms.FormFieldNode'.' is thrown.
Declined
Last Updated: 03 Sep 2019 15:12 by ADMIN
Created by: Antony
Comments: 1
Category: PdfProcessing
Type: Feature Request
1

I would like to request an example of the RadPdfProcessing library utilizing a Line Chart similar to how the Bar Chart is drawn in this example. 

Additionally, it would be great if there was an example with multiple charts on one page.

Thank you!

Approved
Last Updated: 20 Sep 2019 10:16 by ADMIN
Created by: Marc
Comments: 2
Category: PdfProcessing
Type: Feature Request
3
Add support for Lab color space to allow clients to import and export documents with Lab color space.
Approved
Last Updated: 07 Aug 2019 11:06 by ADMIN
In principle, the blend function B (Cb , Cs ) is used in the compositing formula to customize the blending operation in Adobe transparency imaging model. The blending mode may define any function which yields another result color from the backdrop and source colors. This will allow overlaying objects on each other forming a transparency stack.

Support for the Blend Mode parameter of the external graphic state should be implemented.
Approved
Last Updated: 05 Aug 2019 14:51 by ADMIN
When the content of a page is rotated, each glyph is exported on a new line.
Approved
Last Updated: 01 Aug 2019 15:32 by ADMIN
Sometimes customers need to create documents using the CMYK colors to meet specific requirements for printing. Expose such functionality in PdfProcessing.
Approved
Last Updated: 01 Aug 2019 07:57 by ADMIN
Importing document containing TextBox widgets with NormalContentSource defining text properties, such as FontSize and Position, are exported with incorrect appearance when the value of the field is modified.
Approved
Last Updated: 26 Jul 2019 13:19 by ADMIN
Created by: David
Comments: 0
Category: PdfProcessing
Type: Feature Request
4
Currently adding an Image content element with ImageSource instantiated with a PNG file format leads to NotSupportedException: 'Can not export other than Jpeg and Jpeg2000 and ImageQuality different than High', when exporting the document.

Support for adding PNG images and exporting to PDF should be implemented for PdfProcessing for .NET Standard scenario.
Approved
Last Updated: 19 Jul 2019 08:36 by ADMIN
Created by: Bertha
Comments: 0
Category: PdfProcessing
Type: Feature Request
1
Support for exporting WMF (Windows Metafile) and EMF (Enhanced Metafile) images should be implemented.

Workaround: Convert the WMF images to PNG before exporting:
ImageSource imageSource = new ImageSource(new MemoryStream(this.ConvertWmfImageToPng(stream)));
document.Pages.AddPage().Content.AddImage(imageSource);
...
private byte[] ConvertWmfImageToPng(Stream wmfImageStream)
{
    byte[] pngBytes;
 
    using (MemoryStream pngImageStream = new MemoryStream())
    {
        System.Drawing.Image imageDrawing = System.Drawing.Image.FromStream(wmfImageStream);
        imageDrawing.Save(pngImageStream, System.Drawing.Imaging.ImageFormat.Png);
        pngBytes = pngImageStream.ToArray();
    }
 
    return pngBytes;
}

Completed
Last Updated: 01 Jul 2019 07:04 by ADMIN
Release LIB 2019.2.701 (07/01/2019)
By the PDF format specification, CIDToGIDMap is optional. The default value is Identity. However when exporting CID Font with missing CIDToGIDMap property the analyzing tool causes the following warning message:

"PDF/A requires that a Type 2 CIDFont has a stream mapping from CIDs to glyph indices or the name Identity as its value."
Approved
Last Updated: 25 Jun 2019 16:05 by ADMIN
When merging files the documents might have the same fonts embedded. Then the PdfProcessing should use only one of the fonts and skip embedding the second font in the resulting document.
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