- 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
- EMF to PDF as vector image
- Layout text with MultilineTextShape
- Add multiline text to a PDF document
- .NET Core console app on MacOS
- How to add autosized text to PDF
- How to generate and export certificates
- 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
- Licensing and .NET Standard
- 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
Flatten Markup Annotation
This article illustrate how to turn markups to images by flatten markups.
Assume we have an existing PDF document with a highlight markup. When we add an image to it, we expect the image to be drawn on top of the markup because it is added later. Like this:
However, what really happens is that the image is drawn where it should be, but the markup is drawn over it in a PDF reader. Like this:
The reason is that, by design, annotations are drawn on top of the static graphics.
By flattening markups, they become part of the static context (and so no longer behave as markups) and then you can draw on top of them. The following code demonstrates this:
Document document = new Document(
new FileStream(@"markupFlattenExample.pdf", FileMode.Open, FileAccess.Read));
Page page = document.Pages[0];
// Unmark the following statements will flatten the first markup
// and remove it.
//page.Markups[0].Flatten(page.Overlay);
//page.Markups.RemoveAt(0);
ImageShape imageShape = new ImageShape("tallcomponents-logo.png");
imageShape.KeepAspectRatio = true;
imageShape.Height = 100;
imageShape.Transform = new TranslateTransform(80, 630);
document.Pages[0].Overlay.Add(imageShape);
using(FileStream fileOut = new FileStream(@"temp.pdf", FileMode.Create, FileAccess.Write))
{
document.Write(fileOut);
}
Process.Start("temp.pdf");
Dim document As New Document(New FileStream("..\..\markupFlattenExample.pdf", FileMode.Open, FileAccess.Read))
Dim page As Page = document.Pages(0)
' Unmark the following statements will flatten the first markup
' and remove it.
'page.Markups[0].Flatten(page.Overlay);
'page.Markups.RemoveAt(0);
Dim imageShape As New ImageShape("..\..\tallcomponents-logo.png")
imageShape.KeepAspectRatio = True
imageShape.Height = 100
imageShape.Transform = New TranslateTransform(80, 630)
document.Pages(0).Overlay.Add(imageShape)
Using fileOut As New FileStream("..\..\temp.pdf", FileMode.Create, FileAccess.Write)
document.Write(fileOut)
End Using