Drawing Page numbers onto PDF document

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   Hi,
I am using DebenuPDFLibraryDLL0911 with c# in vs2010. I have a wrapper class to manipulate documents as I need to including Merging pdf's. All is well.

I decided that it would be good to OVERLAY my own page numbers onto the merged document. I created a function in my class (shown at end).

My problem is that I obviously don't understand the positioning mechanism

My test document is a merge between an A4 landscape PDF and an A4 portrait PDF.
I would like the page number to be 1.5" from the bottom and 1.5" from the right of each page.

I first presumed that working in points I would use the value 108 and deduct that from the page width & page height. Setting the measurements to points so that they are all in the same measurement system.

No errors but no page numbers on the document.

Playing around I noted that using the value 470 I do get page numbers on the document BUT
not in the position I expected to see them. Their approxiamate positions are:
on the landscape pages 4.7cm from left 9.4 cm from bottom
on the portrait pages 11.4 cm from left 6.6 cm from bottom

Can someone explain/tell me what fact(s) I am obviously missing.

Thanks

/////////// My code to add page numbers
public bool RenumberPages(string filename, int startNumber, string outfile)
        {
            bool result = false;
            int pageNo = startNumber;
            try
            {
                DebenuPDFLibraryLoadFromFile(InstanceID, filename, "");

                int id = DebenuPDFLibraryAddStandardFont(InstanceID, 4);
                for (int i = 1; i <= DebenuPDFLibraryPageCount(InstanceID); i++)
                {
                    DebenuPDFLibrarySelectPage(InstanceID, i);
                    DebenuPDFLibraryNormalizePage(InstanceID, 0);

                    DebenuPDFLibrarySetOrigin(InstanceID, 0);
                    DebenuPDFLibrarySetMeasurementUnits(InstanceID,0);

                    DebenuPDFLibrarySelectFont(InstanceID, id);
                    DebenuPDFLibrarySetTextSize(InstanceID, 12);

                    double ph = DebenuPDFLibraryPageWidth(InstanceID);
                    double pw = DebenuPDFLibraryPageHeight(InstanceID);

                    DebenuPDFLibraryDrawText(InstanceID, pw - 470, ph - 470, "[" + pageNo++.ToString() + "]");
                }
                DebenuPDFLibrarySaveToFile(InstanceID, outfile);
                result = true;
            }
            catch { };

            return result;
        }

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kerrywales Members Profile Find Members Posts Beginner Joined: 06 Oct 10 Status: Offline Points: 5	Post Options Post Reply Quote kerrywales Report Post Thanks(0) Quote Reply Topic: Drawing Page numbers onto PDF document Posted: 18 Jan 13 at 1:04PM
	Hi, I am using DebenuPDFLibraryDLL0911 with c# in vs2010. I have a wrapper class to manipulate documents as I need to including Merging pdf's. All is well. I decided that it would be good to OVERLAY my own page numbers onto the merged document. I created a function in my class (shown at end). My problem is that I obviously don't understand the positioning mechanism My test document is a merge between an A4 landscape PDF and an A4 portrait PDF. I would like the page number to be 1.5" from the bottom and 1.5" from the right of each page. I first presumed that working in points I would use the value 108 and deduct that from the page width & page height. Setting the measurements to points so that they are all in the same measurement system. No errors but no page numbers on the document. Playing around I noted that using the value 470 I do get page numbers on the document BUT not in the position I expected to see them. Their approxiamate positions are: on the landscape pages 4.7cm from left 9.4 cm from bottom on the portrait pages 11.4 cm from left 6.6 cm from bottom Can someone explain/tell me what fact(s) I am obviously missing. Thanks /////////// My code to add page numbers public bool RenumberPages(string filename, int startNumber, string outfile) { bool result = false; int pageNo = startNumber; try { DebenuPDFLibraryLoadFromFile(InstanceID, filename, ""); int id = DebenuPDFLibraryAddStandardFont(InstanceID, 4); for (int i = 1; i <= DebenuPDFLibraryPageCount(InstanceID); i++) { DebenuPDFLibrarySelectPage(InstanceID, i); DebenuPDFLibraryNormalizePage(InstanceID, 0); DebenuPDFLibrarySetOrigin(InstanceID, 0); DebenuPDFLibrarySetMeasurementUnits(InstanceID,0); DebenuPDFLibrarySelectFont(InstanceID, id); DebenuPDFLibrarySetTextSize(InstanceID, 12); double ph = DebenuPDFLibraryPageWidth(InstanceID); double pw = DebenuPDFLibraryPageHeight(InstanceID); DebenuPDFLibraryDrawText(InstanceID, pw - 470, ph - 470, "[" + pageNo++.ToString() + "]"); } DebenuPDFLibrarySaveToFile(InstanceID, outfile); result = true; } catch { }; return result; }

kerrywales Members Profile Find Members Posts Beginner Joined: 06 Oct 10 Status: Offline Points: 5	Post Options Post Reply Quote kerrywales Report Post Thanks(0) Quote Reply Posted: 18 Jan 13 at 1:27PM
	OK there is a mistake in the set origin. Should set it from top left if I am subtracting from the page height. Things are still in the wrong place though.

kerrywales Members Profile Find Members Posts Beginner Joined: 06 Oct 10 Status: Offline Points: 5	Post Options Post Reply Quote kerrywales Report Post Thanks(0) Quote Reply Posted: 18 Jan 13 at 1:36PM
	Also I claim prat of the year award. Does help if PageWidth is assigned to my pw variable and PageHeight to my ph. It may still be wrong but at least its logical now. I'm blaming the snow and making me cold.......

kerrywales Members Profile Find Members Posts Beginner Joined: 06 Oct 10 Status: Offline Points: 5	Post Options Post Reply Quote kerrywales Report Post Thanks(0) Quote Reply Posted: 18 Jan 13 at 2:19PM
	My apologies for posting without thinking straight. Well two cups of tea and a 20 minute break means that I am thinking again and just for completeness this is my function in my wrapper class: As well as giving a starting page number I wanted to set the position of the where the page number was to be printed for that document So nothing wrong with what I was doing really. Just needed to get brain into gear. public bool RenumberPages(string filename, int startNumber, string outfile, int position, double xOffset, double yOffset) { //offset in points 1/72 of inch //always measurement to nearest edge //position // 0 = bottom left // 1 = top left // 2 = top right // 3 = bottom right bool result = false; int pageNo = startNumber; double xPos; double yPos; try { DebenuPDFLibraryLoadFromFile(InstanceID, filename, ""); int id = DebenuPDFLibraryAddStandardFont(InstanceID, 4); DebenuPDFLibrarySelectFont(InstanceID, id); DebenuPDFLibrarySetTextSize(InstanceID, 12); for (int i = 1; i <= DebenuPDFLibraryPageCount(InstanceID); i++) { DebenuPDFLibrarySelectPage(InstanceID, i); DebenuPDFLibrarySetOrigin(InstanceID, 1); DebenuPDFLibrarySetMeasurementUnits(InstanceID, 0); DebenuPDFLibraryNormalizePage(InstanceID, 1); double pw = DebenuPDFLibraryPageWidth(InstanceID); double ph = DebenuPDFLibraryPageHeight(InstanceID); //calc x & y based on where page number wanted switch (position) { case 0: xPos = xOffset; yPos = ph - yOffset; break; case 1: xPos = xOffset; yPos = yOffset; break; case 2: xPos = pw - xOffset; yPos = yOffset; break; default: xPos = pw - xOffset; yPos = ph - yOffset; break; } DebenuPDFLibraryDrawText(InstanceID, xPos, yPos, "[" + pageNo++.ToString() + "]"); } DebenuPDFLibrarySaveToFile(InstanceID, outfile); result = true; } catch { }; return result; }

Ingo Members Profile Find Members Posts Moderator Group Joined: 29 Oct 05 Status: Offline Points: 3524	Post Options Post Reply Quote Ingo Report Post Thanks(0) Quote Reply Posted: 18 Jan 13 at 5:53PM
	Hi Kerry! Thanks for the sample. I've posted it in the samples-section, too ;-) Cheers and welcome here, Ingo