Draw image with a Clip Region

[procamSpire]

Hello Spire.
Please, how to draw a Image with defined Clip region in Spire.PDF ?

For example I want to draw image with a Rectangle Clip Region defined.
So at the output PDF will stay only (small) piece from inside of a image.

Thank you!

BR,
Vladimir

[Amber.Gu]

Hi,

Thanks for your inquiry.
Please refer to the code below to draw an image on PDF page and save the PDF file at the same size of the image.

Code: Select all

            PdfDocument doc = new PdfDocument();
            Image image = Image.FromFile(@"……\picture.png");
            PdfImage pdfimage = PdfImage.FromImage(image);

            //Get the image size in point and create a new page with image size.
            PdfUnitConvertor uinit = new PdfUnitConvertor();
            SizeF pageSize = uinit.ConvertFromPixels(image.Size, PdfGraphicsUnit.Point);
            PdfPageBase page = doc.Pages.Add(pageSize, new PdfMargins(0f));

            //Draw the PDF image on the PDF page.
            page.Canvas.DrawImage(pdfimage, new PointF(0, 0));
            doc.SaveToFile("result.pdf");

If the code couldn't solve your issue, please offer us your input image and your desired result file for further investigation. You could upload them here or send us(support@e-iceblue.com) via email.

Best wishes,
Amber
E-iceblue support team

[procamSpire]

Hi!
There is no clipping of image in you source sample - only drawing of complete image onto page.
I want to draw only part of image (this is clipping) described by rectangle.



Best regards,
Vladimir

[Amber.Gu]

Hi,

Thanks for your reply.
Sorry that Spire.PDF doesn't support to capture part of picture with a clip region then draw it on the PDF page.

Best wishes,
Amber
E-iceblue support team

[procamSpire]

Hi Spire!
Do you have in plans for future to implement the clipping of images?
BR,

Vladimir

[Amber.Gu]

Hi,

Thanks for your reply.
We will consider adding this new feature into our upgrade schedule in the future. Once there is any progress, we will inform you.
Sorry for the inconvenience caused.

Best wishes,
Amber
E-iceblue support team

[Amber.Gu]

Hi,

Hope you are doing well.
After further investigation, we found that you could draw a clip region of an image on Pdf page by calling the method "SetClip". Below is the code for your reference.

Code: Select all

            PdfDocument doc = new PdfDocument();
            Image image = Image.FromFile(@"……\picture.png");
            PdfImage pdfimage = PdfImage.FromImage(image);

            SizeF pageSize = new SizeF(PdfPageSize.A4);
            PdfPageBase page = doc.Pages.Add(pageSize, new PdfMargins(0f));

            //Set the clip region of the image.
            RectangleF re = new RectangleF(new PointF(100, 100), new SizeF(100, 100));
            page.Canvas.SetClip(re);

            //Draw the image on the Pdf page.
            page.Canvas.DrawImage(pdfimage, new PointF(100, 100));

            //Save to file.
            doc.SaveToFile("result.pdf",FileFormat.PDF);

Best wishes,
Amber
E-iceblue support team

[Amber.Gu]

Hi,

Greetings from E-iceblue.
Have you tried the code I offered you last time? Does it solve your issue?
Could you please give us some feedback at your convenience?

Best wishes,
Amber
E-iceblue support team