Modifying Hyperlinks

Aspose.PDF Product Family
1

Hi there,

I’m just wondering if it’s possible to use ExtractLink of PDFContentEditor and change the properties of all the links found in a PDF document.

For example, say I have a pdf document with URL type hyperlinks. Can I use PDFContentEditor and bind that document, then use ExtractLink to go through all the links and change the link type to a page link, set the DesPageNum to a page number in the same document?

Example:
PdfContentEditor ceditor = new PdfContentEditor();
string inFile = “c:\testdata\testXML3.pdf”;
FileStream inStream = new FileStream(inFile, FileMode.Open, FileAccess.ReadWrite);
ceditor.BindPdf(inStream);
int destinationpage = 3

ArrayList linkArray = ceditor.ExtractLink();
LinkInfo[] links = (LinkInfo[])linkArray.ToArray(typeof(LinkInfo));

for (int k = 0; k < linkArray.Count; k++)
{
links[k].DesPageNum = destinationpage;
links[k].ActionType = “Local”;
links[k].LinkURI = null;
links[k].DestinationViewType = “FitPage”;
}

We’re currently evaluating this product to see if we can use this tool in our project.

Thanks,
Hubert

2

Hi,

Thank you for considering Aspose.

I am sorry but you cannot modify the links in this manner. It is currently not supported. However you can create new links using the CreateLocalLink function.

Thanks.

3

Thanks for the quick reply. Looking at CreateLocalLink, it seems that I have to supply an output file. Does this mean that if I need to create 5 links in a single PDF, I will have to output to a file each time for a total of 5 times?

4

Hi hdumas,

when you need to create multi-links, you can use the function of Create Link repetitively as below.

System.Drawing.Rectangle rect=new System.Drawing.Rectangle(100,100, 90, 90);
PdfContentEditor editor = new PdfContentEditor();

editor.BindPdf(TestPath + "PdfContentEditor.CreateLocalLink.in.pdf");

System.Drawing.Color c=System.Drawing.Color.FromArgb(255,0,255);
editor.CreateLocalLink(TestPath+ "PdfContentEditor.CreateLocalLink.out.pdf",rect, 1, 2,c);
editor.CreateLocalLink(TestPath+ "PdfContentEditor.CreateLocalLink.out.pdf",rect, 2, 1,c);
editor.Save(TestPath+ "PdfContentEditor.CreateLocalLink.out.pdf");
If any question, please inform me.
5

I'm also looking at modifying / removing hyperlinks from generated PDF documents.

Is there a timeframe for when this will be supported?

6

Hi,

Thank you for considering Aspose.

Right now we haven't got any specific time frame about the availability of this feature. I am afraid that we have no short term plans to support this feature. But we will let you know here on this forum, if we plan to support this feature.

Thanks.