- Dynamic XFA
- pdfkit5 and Xamarin
- Use multiple licenses
- Replace field with image
- Import FDF into PDF
- Embed TrueType font in PDF
- Determine if a PDF only contains images
- Download and convert image to PDF
- Use TrueType font collections
- Determine the content bounding box
- Highlight fields in PDF
- Add hyperlink to PDF
- Add Stamp to PDF
- How do I extract page destinations from bookmarks?
- Convert SVG to PDF
- Extract glyph boxes from PDF
- Fill in a template PDF document
- Extract graphics from PDF
- Flatten Markup Annotation
- Fill and save dynamic XFA form
- Clip PDF page content in C#
- How to scale content of PDF
- Use pdfkit5 with a Xamarin.Forms app
- Create tagged PDF
- Add single-line text to PDF
- Change the formatting of a numeric field
- Add bookmarks to PDF
- Convert PDF to plain text
- TIFF to PDF C#
- Add a note to PDF
- Add a link with an internal destination to PDF
- Create formfields in PDF documents
- Extract embedded files from PDF
- Remove graphics from PDF
- Fit image to PDF page
- Split PDF pages in C# and VB.NET
- Add tags to existing PDF
- pdfkit5 - detailed changes to the API - Tall Components
- Add a link to PDF with an external destination
- Translate PDF page content
- How to sign and verify updates to a PDF document
- Create a new digitally signed PDF document
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- Layout text with MultilineTextShape
- Add multiline text to a PDF document
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- Write Document to HttpResponse
- Create rectangles with rounded corners
- Add barcodes to PDF
- Append two or more existing PDF files
- pdfkit5 and .NET Core
- Create a text annotation in PDF with rich text
- Rotate a PDF page
- Add text field to PDF
- Change the color inside a PDF
- How to embed files in a PDF document
- Merge XDP data with dynamic XFA form
- How to mirror PDF pages and other shapes
- Add a Diagonal Watermark to PDF in C# - TallComponents - PDF Library
- Read PDF tags
- How to reduce PDF file size
- Tagged PDF
- Read and write meta data from PDF
- Add footer to PDF
- Create a custom signature handler to sign and verify PDF documents
- Export FDF from PDF form
- Create text with decorations
- Fill XFA form and export XDP data
- Vector graphics in PDF
- Resize PDF pages
- Change page orientation PDF
- Reduce PDF size
- Crop content on a PDF page
- Extract glyphs and sort by reading order
- PDF Viewer Preferences
- Extract images from PDF
- Disable submit button after submitting
- How to downscale all images in a PDF
- Remove PDF security settings
- Merge PDF files in C# .NET
- Flatten PDF form
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- How to downscale all images in a PDF
- Fill PDF form
- pdfkit5 .NET Standard API
- Add a rubber stamp annotation with a custom icon
- Add Long Term Validation (LTV) data to an existing signature
- How to create a tiling for shapes in PDF
- Search text in PDF
- Digitally sign a PDF form in C# or VB.NET
- Add simple html text to PDF
How to scale content of PDF
This code sample creates a copy of a PDF document but the content in the output PDF is scaled.
using (FileStream inFile = new FileStream(@"..\..\input.pdf", FileMode.Open, FileAccess.Read))
{
const double scale = 0.5;
// open the source document
Document documentIn = new Document(inFile);
// create the target document
Document documentOut = new Document();
// enumerate the pages in the source document
for (int i = 0; i < documentIn.Pages.Count; i++)
{
Page inPage = documentIn.Pages[i];
//append a page that has the SAME size as the original page
Page outPage = new Page(inPage.Width, inPage.Height);
documentOut.Pages.Add(outPage);
//calculate a new position for the content within the page
double left = (inPage.Width * (1 - scale)) / 2.0;
double bottom = (inPage.Height * (1 - scale)) / 2.0;
//calculate a new size of the content
double width = inPage.Width * scale;
double height = inPage.Height * scale;
//scale the box and translate it to the center of the page
PageShape pageShape = new PageShape(inPage, left, bottom, width, height);
outPage.VisualOverlay.Add(pageShape);
}
// write the target document to disk
using (FileStream outFile = new FileStream(@"..\..\output.pdf", FileMode.Create, FileAccess.Write))
{
documentOut.Write(outFile);
}
}
Using inFile As New FileStream("..\..\input.pdf", FileMode.Open, FileAccess.Read)
Const scale As Double = 0.5
' open the source document
Dim documentIn As New Document(inFile)
' create the target document
Dim documentOut As New Document()
' enumerate the pages in the source document
For i As Integer = 0 To documentIn.Pages.Count - 1
Dim inPage As Page = documentIn.Pages(i)
'append a page that has the SAME size as the original page
Dim outPage As New Page(inPage.Width, inPage.Height)
documentOut.Pages.Add(outPage)
'calculate a new position for the content within the page
Dim left As Double = (inPage.Width * (1 - scale)) / 2.0
Dim bottom As Double = (inPage.Height * (1 - scale)) / 2.0
'calculate a new size of the content
Dim width As Double = inPage.Width * scale
Dim height As Double = inPage.Height * scale
'scale the box and translate it to the center of the page
Dim pageShape As New PageShape(inPage, left, bottom, width, height)
outPage.VisualOverlay.Add(pageShape)
Next
' write the target document to disk
Using outFile As New FileStream("..\..\output.pdf", FileMode.Create, FileAccess.Write)
documentOut.Write(outFile)
End Using
End Using
Below you can see the screenshots of an original PDF and the output. Note that the size of the page remains the same while the content is scaled down.
Original PDF:
Scaled PDF: