How to set the page size to Envelope size with Landscape orientation?

Question

I have problem on creating .pdf file with the Page settings as Envelope ,landscape format.

Here is my Code to convert the asp page into pdf in Itextsharp

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Answer 1

You are creating an A4 document in landscape format with this line:

Document pdfDoc = new Document(PageSize.A4.Rotate(), 10f, 10f, 100f, 0f);

If you want to create a document in envelope format, you shouldn't create an A4 page, instead you should do this:

Document pdfDoc = new Document(envelope, 10f, 10f, 100f, 0f);

In this line, envelope is an object of type Rectangle.

There is no such thing as the envelope size. There are different envelope sizes to choose from: http://www.paper-papers.com/envelope-size-chart.html

For instance, if you want to create a page with the size of a 6-1/4 Commercial Envelope, then you need to create a rectangle that measures 6 by 3.5 inch. The measurement system in PDF doesn't use inches, but user units. By default, 1 user unit = 1 point, and 1 inch = 72 points.

Hence you'd define the envelope variable like this:

Rectangle envelope = new Rectangle(432, 252);

Because:

6 inch x 72 points = 432 points (the width)
3.5 inch x 72 points = 252 points (the height)

If you want a different envelope type, you have to do the calculations of the dimensions of that envelope format.