Add relative links between 2 pdf documents

[RaduC]

Hi,

I am trying to create relative links between 2 pdf documents -> click on one link should open the other pdf document on a bookmark. I read that there is no way to open pdfs to specific bookmarks, but you can do that through named destinations. I would like to create named destinations from the current bookmarks and set the links to point to the new named destinations. I can do this using the PdfViewer using the menus, but I need to be able to accomplish this programatically through the PDF Tools.

I did try to use the PXCp_BMGetItemInfo method to get information about the bookmarks (mainly the PXCp_BMDestination) and to create a Named Destination from it but the method always gives me Invalid Argument Error. I am attaching my test program to demonstrate this.

So I have 3 questions:

1. How do I get the destination for a bookmark using the PDF-Tools?
2. Which is the method for creating named destinations (I only found one that removes named destinations)?
3. How can I add a link that points to a named destination in another pdf?

Thank you,
--
Radu

[Stefan - PDF-XChange]

Hello Radu,

I've checked with one of the PDF Tools SDK experts and he has told me that

1) PXCp_BMGetItemInfo is not working for named destinations (at least it will not give the destination name).
and that to achieve 2) and 3) you will need to use the low lever API for which we do not provide support and you would need good understanding of the PDF format and structure and code all the features yourself.

Regards,
Stefan

[RaduC]

Hi Stefan,

Thank you for the fast reply. I was trying to get the PXCp_BMDestination for the bookmarks (not named destinations) that are already created using the PXCp_BMGetItemInfo and I am getting that error (Invalid argument). From the PXCp_BMDestination I wanted to take the Page, Zoom, Margins etc to create the named destination.

I have something like this in my code in the first post:

var currentItem = 0;
var bmItemInfo = new XCPro35_Defs.PXCp_BMInfo();
res = XCPro35_Defs.PXCp_BMGetItem(m_pdf, rootItem, XCPro35_Defs.PXCp_OutlinePos.PBM_NEXT, out currentItem);
res = XCPro35_Defs.PXCp_BMGetItemInfo(m_pdf, currentItem, ref bmItemInfo);

After the last line, res is the code for "Invalid Argument".

I'd like to know how to get the information about the bookmark destination so that I might be able to create the named items from this.

Thanks again,
--
Radu

[Stefan - PDF-XChange]

Hi RaduC,

My colleague has mentioned that you should pay a bit more attention to the documentation and read it carefully.
cbSize and Mask must be filled before calling PXCp_BMGetItemInfo

Regards,
Stefan

[RaduC]

Hi Stefan,

Thanks it worked. I read the documentation, but it seems not careful enough and made some assumptions that some properties are optional.

I was missing these 2 lines:

bmItemInfo.Mask = (int)XCPro35_Defs.PXCp_BMInfoMask.BMIM_Destination;
bmItemInfo.cbSize = Marshal.SizeOf(bmItemInfo);

Thanks!

Best regards,
--
Radu

[Stefan - PDF-XChange]

Glad we could help RaduC

Cheers,
Stefan