Rank: Newbie
Groups: Guest
Joined: 10/26/2017(UTC)
Posts: 2
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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.
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Rank: Advanced Member
Groups: Guest
Joined: 7/4/2017(UTC)
Posts: 43
Was thanked: 12 time(s) in 12 post(s)
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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)
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Rank: Newbie
Groups: Guest
Joined: 10/26/2017(UTC)
Posts: 2
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Thanks for help! Another question. Is it possible to rotate the PDF page 90 degrees? (without rasterizing ) Thanks!
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Rank: Advanced Member
Groups: Guest
Joined: 7/4/2017(UTC)
Posts: 43
Was thanked: 12 time(s) in 12 post(s)
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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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