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NotI Hill  
#1 Posted : Thursday, October 26, 2017 4:20:26 AM(UTC)
NotI Hill

Rank: Newbie

Groups: Member
Joined: 10/26/2017(UTC)
Posts: 2

Hi! Could you help with adding new page to existing pdf doc.

When i try (outFileSpec already generated by GM pdf file)

using (PdfWriter writer = new PdfWriter(outFileSpec))

{

writer.AddPage(gc.Width, gc.Height, gc.DpiX, gc.DpiY);

using (var gr = writer.GetGraphics())

{

gr.DrawContainer(gc, 0, 0);

}

}

after writer initialization file already empy..

BTW, its no possibility to generate this file in one loop.

Thanks.

Andrey Semenov  
#2 Posted : Friday, October 27, 2017 12:40:25 AM(UTC)
Andrey Semenov

Rank: Advanced Member

Groups: Member, Administration
Joined: 7/4/2017(UTC)
Posts: 33

Was thanked: 10 time(s) in 10 post(s)
Hi,

Use PdfReader before initalizing PdfWriter in order to add the content of existing document to PdfWriter (as it creates new empty file), like in below example:

Code:
using (var reader = new PdfReader(sourceFilePath, dpi, dpi))
using (var writer = new PdfWriter(destinationFilePath))
{
    writer.AddPage(gc.Width, gc.Height, gc.DpiX, gc.DpiY);

    using (var graphics = writer.GetGraphics())
    {
        graphics.DrawContainer(gc, 0, 0);
    }
}

Actually, new file will be created this way.

Regards,

Andrew

Edited by user Friday, November 10, 2017 2:33:57 AM(UTC)  | Reason: Not specified

NotI Hill  
#3 Posted : Wednesday, November 8, 2017 11:52:33 PM(UTC)
NotI Hill

Rank: Newbie

Groups: Member
Joined: 10/26/2017(UTC)
Posts: 2

Thanks for help!

Another question.

Is it possible to rotate the PDF page 90 degrees? (without rasterizing )

Thanks!

Andrey Semenov  
#4 Posted : Friday, November 10, 2017 2:33:19 AM(UTC)
Andrey Semenov

Rank: Advanced Member

Groups: Member, Administration
Joined: 7/4/2017(UTC)
Posts: 33

Was thanked: 10 time(s) in 10 post(s)
Please try the following code:

Code:
using (var reader = new PdfReader(sourceFilePath))
using (var container = reader.Frames[0].GetContent())
using (var writer = new PdfWriter(destinationFilePath))
{
    writer.AddPage(container.Height, container.Width);

    using (var graphics = writer.GetGraphics())
    {
        graphics.Transform.Rotate(-90);
        graphics.DrawContainer(container, 0, container.Width);
    }
}

Regards,

Andrew

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