Hi,
Ran into this same issue - watermarking an existing pdf with mixed portrait & landscape pages.
One quick solution is to rotate each landscape page, eg:
Code:
page.Orientation = PdfSharp.PageOrientation.Portrait;
page.Rotate = 0;
I also managed to get to the source of the problem, the following workaround allowed me to retain the rotated landscape pages as they were in the original document. The page.Size property was undefined for each page, and it needs to be set with the current PageSize value for the landscape pages to be saved correctly. A quick-fix function to find the correct PageSize value for the given page is:
Code:
private void SetPageSize(PdfPage page)
{
PageSize result = PageSize.Undefined;
PageSize[] pageSizes = (PageSize[])Enum.GetValues(typeof(PageSize));
foreach (PageSize pageSize in pageSizes)
{
if (pageSize == PageSize.Undefined)
continue;
try
{
XSize size = PageSizeConverter.ToSize(pageSize);
if (page.Orientation == PageOrientation.Portrait)
{
if (size.Width == page.Width.Point && size.Height == page.Height.Point)
{
result = pageSize;
break;
}
}
else
{
if (size.Width == page.Height.Point && size.Height == page.Width.Point)
{
result = pageSize;
break;
}
}
}
catch
{
//swallow argument exception - the PageSizeConverter does not define an actual size for this PageSize (eg. PageSize.Undefined)
}
}
if (result != PageSize.Undefined)
page.Size = result;
}
And call this function at the end of the watermarking loop passing the current page. I call it at the end of the loop as setting the page.Size property modifies the page rectangle, and this can mess up the page size if you call it at the start of the loop.
I think this qualifies as a bug - the saving of pages is dependent on the current page.Size value, but the value is not set when pages are loaded in - when the Size is Undefined, it seems like it defaults to Portrait sizes.
hth,
woody
Login
Register
FAQ
Search
