how custom page size pdf file

Tue May 18, 2021 6:53 am

Hello, I want to know how custom page size pdf file in c# .net.

thank.

Tue May 18, 2021 9:26 am

Thanks for your inquiry.
Please refer to the following codes.

(1) Set page size when adding a new page.

Code: Select all: PdfDocument pdf = new PdfDocument(input); //You can pass in a static variable of common sizes in PdfPageSize PdfPageBase pdfPageBase1 = pdf.Pages.Add(PdfPageSize.A5); //Or pass in a custom SizeF object. PdfPageBase pdfPageBase2 = pdf.Pages.Add(new SizeF(width,height)); pdf.SaveToFile("output.pdf", FileFormat.PDF);

(2) Reset the page size of existing pages.

Code: Select all: PdfDocument originalDoc = new PdfDocument(); originalDoc.LoadFromFile(input); //Set the margins PdfMargins margins = new PdfMargins(0); using (PdfDocument newDoc = new PdfDocument()) { float scale = 0.8f; for (int i = 0; i < originalDoc.Pages.Count; i++) { PdfPageBase page = originalDoc.Pages[i]; //Use same scale to set width and height float width = page.Size.Width * scale; float height = page.Size.Height * scale; //Add new page with expected width and height PdfPageBase newPage = newDoc.Pages.Add(new SizeF(width, height), margins); newPage.Canvas.ScaleTransform(scale, scale); //Copy content of original page into new page newPage.Canvas.DrawTemplate(page.CreateTemplate(), PointF.Empty); } newDoc.SaveToFile(output); }

If you have any other questions, please feel free to contact us.

Tue May 18, 2021 9:59 am

Andy.Zhou wrote:Thanks for your inquiry.
Please refer to the following codes.

(1) Set page size when adding a new page.

Code: Select all
PdfDocument pdf = new PdfDocument(input); //You can pass in a static variable of common sizes in PdfPageSize PdfPageBase pdfPageBase1 = pdf.Pages.Add(PdfPageSize.A5); //Or pass in a custom SizeF object. PdfPageBase pdfPageBase2 = pdf.Pages.Add(new SizeF(width,height)); pdf.SaveToFile("output.pdf", FileFormat.PDF);

(2) Reset the page size of existing pages.

Code: Select all
PdfDocument originalDoc = new PdfDocument(); originalDoc.LoadFromFile(input); //Set the margins PdfMargins margins = new PdfMargins(0); using (PdfDocument newDoc = new PdfDocument()) { float scale = 0.8f; for (int i = 0; i < originalDoc.Pages.Count; i++) { PdfPageBase page = originalDoc.Pages[i]; //Use same scale to set width and height float width = page.Size.Width * scale; float height = page.Size.Height * scale; //Add new page with expected width and height PdfPageBase newPage = newDoc.Pages.Add(new SizeF(width, height), margins); newPage.Canvas.ScaleTransform(scale, scale); //Copy content of original page into new page newPage.Canvas.DrawTemplate(page.CreateTemplate(), PointF.Empty); } newDoc.SaveToFile(output); }

If you have any other questions, please feel free to contact us.

thank you. Now I'm can set pang But I don't know how many millimeters is 1 f ?

Tue May 18, 2021 10:16 am

Hi,

Thanks for your response.

The default page size unit in our product is point. You can refer to the following code to convert the unit from millimeter to point.

Code: Select all: PdfUnitConvertor convertor = new PdfUnitConvertor(); float pointValue=convertor.ConvertUnits(millimeterValue, PdfGraphicsUnit.Millimeter, PdfGraphicsUnit.Point);

If you have any other questions, please feel free to contact us.

Tue May 18, 2021 4:44 pm

Andy.Zhou wrote:Hi,

Thanks for your response.

The default page size unit in our product is point. You can refer to the following code to convert the unit from millimeter to point.
Code: Select all
PdfUnitConvertor convertor = new PdfUnitConvertor(); float pointValue=convertor.ConvertUnits(millimeterValue, PdfGraphicsUnit.Millimeter, PdfGraphicsUnit.Point);

If you have any other questions, please feel free to contact us.

Thank you. for Reply

Wed May 19, 2021 5:33 am

You are welcome!
Have a nice day!