Add ImageStamp or Image to given position result wrong position

Aspose.PDF Product Family
1

Hi, Support:

I use Pdf.Pages(1).addStamp or Pdf.Pages(1).addImage at (0,0) position, however the position of the added image is wrong not at the right position (0,0), how to reach and fix it?
ImageStamp.XIndex=0
ImageStamp.YIndex=0
ImageStamp.LeftMargin=0
ImageStamp.TopMargin=0
ImageStamp.RightMargin=W
ImageStamp.BottomMargin=H
Pdf.Pages(1).addStamp(ImageStamp)
Pdf.Pages(1).addImage(ImageStream, new rectangle(0,0,h))

using the above code, the two methods output wrong position and image size.

2

@ducaisoft

When adding an image stamp or image to a PDF at the (0,0) position, if the output is not as expected, there are a few things you can check and adjust in your code.

  1. Positioning: Ensure that you are using the correct properties for positioning the image. In Aspose.PDF, the properties XIndent and YIndent are used to set the position of the stamp. For example:

    ImageStamp imageStamp = new ImageStamp("path_to_image.jpg");
imageStamp.XIndent = 0; // Set X position
imageStamp.YIndent = 0; // Set Y position

  2. Margins: If you are setting margins (like LeftMargin, TopMargin, etc.), ensure that they are set to zero if you want the image to be placed exactly at (0,0). Margins can affect the final position of the stamp.

  3. Size and Scaling: Check the size of the image stamp. If the image is too large or scaled incorrectly, it may appear to be positioned incorrectly. You can set the height and width of the image stamp explicitly:

    imageStamp.Height = desiredHeight; // Set desired height
imageStamp.Width = desiredWidth; // Set desired width

  4. Background Property: If you want the image to be a background stamp, ensure that the Background property is set to true. This can affect how the image is rendered in relation to other content on the page.

  5. Testing with Simple Cases: If the issue persists, try creating a simple PDF with just the image stamp to isolate the problem. This can help determine if the issue is with the PDF structure or the stamp itself.

Here is a sample code snippet that demonstrates how to add an image stamp correctly:

using Aspose.Pdf;
using Aspose.Pdf.Stamps;

Document pdfDocument = new Document("input.pdf");
ImageStamp imageStamp = new ImageStamp("path_to_image.jpg");
imageStamp.XIndent = 0; // Set X position
imageStamp.YIndent = 0; // Set Y position
imageStamp.Height = 100; // Set height
imageStamp.Width = 100; // Set width
imageStamp.Background = true; // Set as background

pdfDocument.Pages[1].AddStamp(imageStamp);
pdfDocument.Save("output.pdf");

By following these guidelines, you should be able to position your image stamp correctly at the desired coordinates. If you continue to experience issues, consider checking the documentation for more details on the properties and methods available for image stamps.

3

The code output wrong position. Please fix it.

4

@ducaisoft

Would you please share what position do you expect for the image to be added on? Instead of setting XIndent and YIndent of the stamp, you can also set Horizontal and Vertical Alignments. In case you have different requirements, please share your sample PDF with expected output so that we can further proceed to assist you accordingly.

5

The real W and H of the page must be gotten by the method of Pdf.Pages[1].GetPageRect(true).Width, not by Pdf.Pages[1].PageInfo.Width, using the new method, the purpose can be reached.

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