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Last 10 Posts (In reverse order)
Paul Rayman	Posted: Friday, April 23, 2021 7:18:11 PM(UTC)
	One more example Code: `using (var doc = PdfDocument.Load(@"e:\0\1GB\source.pdf")) { Console.WriteLine($"size: {doc.Pages[0].Width}x{doc.Pages[0].Height}"); foreach (var page in doc.Pages) { page.MediaBox = new FS_RECTF(-500, page.Height + 500, page.Width + 500, -500); page.CropBox = page.MediaBox; } doc.Save(@"e:\10\target.pdf", SaveFlags.NoIncremental); }` Source: Target:
oberon232	Posted: Sunday, February 24, 2019 11:54:33 AM(UTC)
	Paul Rayman, you absolutely rock! Thanks a ton.
Paul Rayman	Posted: Sunday, February 24, 2019 5:56:45 AM(UTC)
	This code works fine for me Code: `var pageDict = pdfViewer1.CurrentPage.Dictionary; var mediaBox = pageDict["MediaBox"].As<PdfTypeArray>(); mediaBox[3] = PdfTypeNumber.Create(mediaBox[3].As<PdfTypeNumber>().FloatValue + 72); pdfViewer1.CurrentPage.Dispose(); pdfViewer1.UpdateLayout();` I guess you should call both page.Dispose() to force the page to reload and pdfViewer1.UpdateLayout() to force PdfViewer to redraw itself;
oberon232	Posted: Sunday, February 24, 2019 5:34:45 AM(UTC)
	Modifying the crop and media boxes in the page's dictionary doesn't appear to affect how the viewer displays the page, and the PdfViewer1.CurrentPage.Height remains the same after the change. Is there a step I'm missing to apply the change? Here's my code (it's in VB.net) Code: Private Sub btnConfidential_Click(sender As Object, e As EventArgs) Handles btnConfidential.Click Dim doc As PdfDocument = PdfViewer1.Document Dim pageDict As PdfTypeDictionary = doc.Pages(PdfViewer1.CurrentIndex).Dictionary Dim cropBox As PdfTypeArray = pageDict("CropBox").As(Of PdfTypeArray) Dim mediaBox As PdfTypeArray = pageDict("MediaBox").As(Of PdfTypeArray) cropBox(3) = PdfTypeNumber.Create(cropBox(3).As(Of PdfTypeNumber).FloatValue + 72) mediaBox(3) = PdfTypeNumber.Create(mediaBox(3).As(Of PdfTypeNumber).FloatValue + 72) pageDict("CropBox") = cropBox pageDict("MediaBox") = mediaBox ToolStripLabel1.Text = cropBox(0).As(Of PdfTypeNumber).FloatValue & "," & cropBox(1).As(Of PdfTypeNumber).FloatValue & "," & cropBox(2).As(Of PdfTypeNumber).FloatValue & "," & cropBox(3).As(Of PdfTypeNumber).FloatValue & " " & PdfViewer1.CurrentPage.Height PdfViewer1.Refresh() End Sub
Paul Rayman	Posted: Sunday, February 24, 2019 1:51:25 AM(UTC)
	Hi, Seems you need to change one or more of the following boundaries MediaBox - (Required; inheritable) A rectangle (see Section 3.8.4, “Rectangles”), ex pressed in default user space units, defining the boundaries of the physical medium on which the page is intended to be displayed or printed (see Section 10.10.1, “Page Boundaries”). CropBox - (Optional; inheritable) A rectangle, expressed in default user space units, defining the visible region of default user space. When the page is dis played or printed, its contents are to be clipped (cropped) to this rectangle and then imposed on the output medium in some implementation defined manner (see Section 10.10.1, “Page Boundaries”). Default value: the value of MediaBox. BleedBox - (Optional; PDF 1.3) A rectangle, expressed in default user space units, de fining the region to which the contents of the page should be clipped when output in a production environment (see Section 10.10.1, “Page Boundaries”). Default value: the value of CropBox. TrimBox - (Optional; PDF 1.3) A rectangle, expressed in default user space units, de fining the intended dimensions of the finished page after trimming (see Section 10.10.1, “Page Boundaries”). Default value: the value of CropBox. ArtBox - (Optional; PDF 1.3) A rectangle, expressed in default user space units, de fining the extent of the page’s meaningful content (including potential white space) as intended by the page’s creator (see Section 10.10.1, “Page Boundaries”). Default value: the value of CropBox. Here is an example how to get these boxes https://forum.patagames....-and-trimbox-of-the-Page Changing these properties is the opposite. Something like this Code: `var array = PdfTypeArray.Create(); array.Add(PdfTypeNumber.Create(left)); array.Add(PdfTypeNumber.Create(bottom)); array.Add(PdfTypeNumber.Create(right)); array.Add(PdfTypeNumber.Create(top)); pageDict["CropBox"] = array;`
oberon232	Posted: Saturday, February 23, 2019 9:29:35 PM(UTC)
	How do you resize and existing page in a pdf? Specifically, I want to add space on the top of the page so I can insert a text object without covering over any of the existing page.

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