Debenu Quick PDF Library - PDF SDK Community Forum : General Discussion

General Discussion : UpdateAndFlattenFormField

Thu, 02 May 2013 15:07:26 +0000

Author: Ingo
Subject: UpdateAndFlattenFormField
Posted: 02 May 13 at 3:07PM

Hi!

If you've found an error in the lib you should post it to the official support forum.

Here the Debenu crew is reading/writing, too but an official mail is better regarding this issue.

Cheers and thanks,

Ingo

General Discussion : UpdateAndFlattenFormField

Thu, 02 May 2013 13:10:20 +0000

Author: Chumly
Subject: UpdateAndFlattenFormField
Posted: 02 May 13 at 1:10PM

UpdateAndFlattenFormField function is setting the font to wingdings in version 9.14.
If I remove UpdateAndFlattenFormField, and use UpdateAppearanceStream, and FlatenFormField, the text is rendered properly.

General Discussion : Change ImageResolution

Mon, 08 Apr 2013 10:05:48 +0000

Author: Ingo
Subject: Change ImageResolution
Posted: 08 Apr 13 at 10:05AM

Hi Karsten!

Changing directly inside a created pdf won't succeed with QP.

For my opinion you have to extract all content... then resize

the images and then reassamble the pages.

If you have luck the new result looks similar to the old one ;-)

Sorry.

Cheers, Ingo

General Discussion : Change ImageResolution

Mon, 08 Apr 2013 08:36:39 +0000

Author: Karsten
Subject: Change ImageResolution
Posted: 08 Apr 13 at 8:36AM

Hi,

I must reduce the filesize of my PDFs and save as new one.
How can I change the imageresolution of alle images to 72 dpi wit QuickPDFLibrary?

This code don't do this

private static void resizePDF(string source, string target)
        {
            PDFLibrary QP = new PDFLibrary(@"QuickPDFDLL0816.dll");
            string licenseKey = "...licensekey...";
            QP.UnlockKey(licenseKey);

            int FileHandle = QP.LoadFromFile(source, "");
            int numPages = QP.PageCount();
            int numImages = QP.FindImages();
            for (int i = 1; i <= numPages; i++)
            {
                for (int j = 1; j <= numImages; j++)
                {
                    int idxImage = QP.GetImageID(i);
                    QP.SelectImage(idxImage);
                    QP.SetImageResolution(72,72,2);
                }
            }

            QP.SaveToFile(target);
        }

Regards
Karsten

Edited by Karsten - 08 Apr 13 at 8:37AM

General Discussion : Assemble multi PDF files in one Page

Wed, 27 Mar 2013 11:57:03 +0000

Author: Ingo
Subject: Assemble multi PDF files in one Page
Posted: 27 Mar 13 at 11:57AM

Hi!

Please read here about content streams / -groups:

http://www.debenu.com/docs/pdf_library_reference/ContentStreamsAndOptionalContentGroups.php

Perhaps you should try to "combine the layers" first.

Cheers, Ingo

General Discussion : Assemble multi PDF files in one Page

Wed, 27 Mar 2013 11:50:50 +0000

Author: JMLM
Subject: Assemble multi PDF files in one Page
Posted: 27 Mar 13 at 11:50AM

Hi

RenderDocumentToStream is not listed in mac documentation and not listed in Xcode

I tried these lines : http://www.debenu.com/kb/render-a-pdf-as-an-image-with-an-asymmetrical-dpi/

[DQPL LoadFromFile:@"/Users/JMLM/Desktop/advil.pdf" :@""] ;

[DQPL RenderPageToFile:72: 1 : 5:@"/Users/JMLM/Desktop/testImg/test.png"];

// Get the original size of the page

double OriginalWidth = [DQPL PageWidth];

double OriginalHeight = [DQPL PageHeight];

// Add a new page

[DQPL NewPage];

// Work out the asymmetrical scaling

double NewWidth = OriginalWidth;

double NewHeight = OriginalHeight * 196 / 204;

// Set the dimensions of the new page

[DQPL SetPageDimensions :NewWidth : NewHeight];

// Capture the original page (it will be removed

// from the document automatically)

int CaptureID = [DQPL CapturePage : 1];

// Set the original to the top-left corner

[DQPL SetOrigin : 1];

// Draw the captured page onto the new page

[DQPL DrawCapturedPage :CaptureID: 0: 0: NewWidth: NewHeight];

// Render the page

[DQPL RenderPageToFile : 204: 1: 5: @"/Users/JMLM/Desktop/testImg/test-2.png" ];

and I tried these lines :

int pageCount = [DQPL PageCount];

[DQPL LoadFromFile:@"/Users/JMLM/Desktop/test.pdf" :@""] ;

[DQPL RenderDocumentToFile:72: 0: pageCount: 5: @"/Users/JMLM/Desktop/testImg/test.png"];

Images are created but all are empty.

Edited by JMLM - 27 Mar 13 at 11:52AM

General Discussion : Assemble multi PDF files in one Page

Tue, 26 Mar 2013 19:49:32 +0000

Author: JMLM
Subject: Assemble multi PDF files in one Page
Posted: 26 Mar 13 at 7:49PM

Nice, thanks.

General Discussion : Assemble multi PDF files in one Page

Tue, 26 Mar 2013 19:36:18 +0000

Author: Ingo
Subject: Assemble multi PDF files in one Page
Posted: 26 Mar 13 at 7:36PM

Yes. It works and it's easy to handle.
Better is RenderDocumentToStream (faster).
If you can post your code here (without key!)
perhaps there's anybody who can correct your
code.
You should be patient 'cause the mac-version
is pretty "fresh" on the market ;-)
Try the guides and search here in the samples-
section with RenderDocumentTo.

Cheers, Ingo

Edited by Ingo - 26 Mar 13 at 7:36PM

General Discussion : Assemble multi PDF files in one Page

Tue, 26 Mar 2013 18:05:30 +0000

Author: JMLM
Subject: Assemble multi PDF files in one Page
Posted: 26 Mar 13 at 6:05PM

I'm on mac : does RenderDocumentToFile function works ?

I tried it but images are empty.

General Discussion : Assemble multi PDF files in one Page

Tue, 26 Mar 2013 16:41:44 +0000

Author: Ingo
Subject: Assemble multi PDF files in one Page
Posted: 26 Mar 13 at 4:41PM

Hi Jim!

We don't have a guid here for things like this.

What you'll need is the functionality to save the single pages as images.

In a second run you should shrink the dimensions of each image with ratio 3.

In a third run you should paste these smaller images three per page on new pages.

In a fourth run you can write on these pages with the drawing functionalities.

More detailed you can read about the functions for the single steps in the developer guide and the reference.

Cheers and welcome here,

Ingo