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- Extract glyph boxes from PDF
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- Vector graphics in PDF
- Translate PDF page content
- Extract graphics from PDF
- Determine the content bounding box
- Search text in PDF
- Convert PDF to plain text
- Flatten Markup Annotation
- Add text field to PDF
- Extract embedded files from PDF
- Extract images from PDF
- Add a Diagonal Watermark to PDF in C#
- Fit image to PDF page
- Add simple html text to PDF
- Add multiline text to a PDF document
- Add single-line text to PDF
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- PDF Viewer Preferences
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- Split PDF pages in C# and VB.NET
- Append two or more existing PDF files
- Determine if a PDF only contains images
- Add footer to PDF
- Convert SVG to PDF
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- Rotate a PDF page
- Change the formatting of a numeric field
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- Fill in a template PDF document
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- Create formfields in PDF documents
- Export FDF from PDF form
- Add a link with an internal destination to PDF
- Remove PDF security settings
- Add a link to PDF with an external destination
- How to sign and verify updates to a PDF document
- Embed TrueType font
- How to create a tiling for shapes in PDF
- EMF to PDF as vector image
- EMF to PDF as raster image
- Replace field with image
- Add a rubber stamp annotation with a custom icon
- Create a text annotation in PDF with rich text
- Read and write meta data from PDF
- Create a custom signature handler to sign and verify PDF documents
- Download and convert image to PDF
- Add barcodes to PDF
- Use multiple licenses
- Disable submit button after submitting
Extract images from PDF
This shows how to extract an image from pdf.
Extract images from an existing PDF document
This code sample illustrates how to iterate through existing content in a PDF document and to save each images found on every page as a new Image file.
static void Main(String[] args)
{
using (FileStream fileIn = new FileStream("PackingLightBrochure.pdf", FileMode.Open, FileAccess.Read))
{
// open pdf document and cycle trhough all pages
Document document = new Document(fileIn);
int i = 0;
foreach (Page page in document.Pages)
{
ShapeCollection shapes = page.CreateShapes();
// go through all images
saveImageShapes(shapes, i);
i++;
}
}
}
static void saveImageShapes(ShapeCollection shapes, int i)
{
foreach (Shape shape in shapes)
{
ImageShape imageShape = shape as ImageShape;
if (imageShape != null)//if current shape is an imageshape, save it
{
System.Drawing.Bitmap bitmap = imageShape.CreateBitmap();
bitmap.Save(string.Format(@"..\..\Image_{0}.png", i));
}
else
{
ShapeCollection shapeCollection = shape as ShapeCollection;
//if current shape is a ShapeCollection, recurse
if (shapeCollection != null)
{
saveImageShapes(shapeCollection, i++);
}
}
}
}
Sub Main()
Using fileIn As New FileStream("..\..\..\inputdocuments/PackingLightBrochure.pdf", FileMode.Open, FileAccess.Read)
'open pdf document and cycle trhough all pages
Dim document As New Document(fileIn)
Dim i As Integer = 0
For Each page As Page In document.Pages
Dim shapes As ShapeCollection = page.CreateShapes()
'go through all images
saveImageShapes(shapes, i)
i += 1
Next
End Using
End Sub
Private Sub saveImageShapes(shapes As ShapeCollection, i As Integer)
For Each shape As Shape In shapes
Dim imageShape As ImageShape = TryCast(shape, ImageShape)
If imageShape IsNot Nothing Then
'if current shape is an imageshape, save it
Dim bitmap As Drawing.Bitmap = imageShape.CreateBitmap()
bitmap.Save(String.Format("..\..\Image_{0}.png", i))
Else
Dim shapeCollection As ShapeCollection = TryCast(shape, ShapeCollection)
'if current shape is a ShapeCollection, recurse
If shapeCollection IsNot Nothing Then
saveImageShapes(shapeCollection, System.Math.Max(System.Threading.Interlocked.Increment(i), i - 1))
End If
End If
Next
End Sub

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