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I have an image I need to center on the print page. It's size is in pixels and I have to convert it first to inches. How do you convert from pixels to inches?

This can be done by using the Height and VerticalResolution of the image you're trying to print.

The following article describes this as the calculation:

float imageHeightPrint = imageToPrint.Height / 
imageToPrint.VerticalResolution * 100;[^]
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Al Yambo 7-Jun-12 8:33am    
Thank you Stephen. The VerticalResolution and HorizontalResolution are all I needed as it gives the conversion in pixels/inch.
Hi try this Code, I am not sure ,hope it may work for you

Image fullSizeImg = null;
        byte[] imageBytes = Convert.FromBase64String(base64String);
        MemoryStream ms = new MemoryStream(imageBytes);
        fullSizeImg = Image.FromStream(ms, true);
        System.Drawing.Image.GetThumbnailImageAbort dummyCallBack = new System.Drawing.Image.GetThumbnailImageAbort(ThumbnailCallback);
        System.Drawing.Image thumbNailImg = fullSizeImg.GetThumbnailImage(700, 800, dummyCallBack, IntPtr.Zero);
        thumbNailImg.Save(ImagePath, System.Drawing.Imaging.ImageFormat.Png);
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Al Yambo 7-Jun-12 8:29am    
thank you for your response.
Thank you Stephen for giving the right answer and link. This is just a clarification post.

Image newImage = Image.FromFile("c:\\Documents\\pic.gif");

newImage.HorizontalResolution and newImage.VerticalResolution gives the conversion in pixels/inch. So if your horizontal measurement is for example 238 pixels and the horizontal resolution is 96 pixels/inch then
238 pixels*(inch/96 pixels)= 2.4792 inch. However I had to multiply by 100 (2.4792 X 100) since I guess the default units for the print page are in hundred inches. Like a normal size typewritting paper would be 850 X 1100 instead of 8.5 X 11.

I can then use this measurements and the page measurements to center the image on the print page.

as in:

// Create Point for upper-left corner of image.
Point ulCorner = new Point(xpos, ypos);

// Draw image to screen.
g.Graphics.DrawImage(newImage, ulCorner);
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LenuIndia 4-Jul-17 13:07pm    
I am Using, I need fix measurement [width= 3.375” x Height = 2.125“]

different images here
image 1 size width = 4500, Height =1393
image 2 size width = 2081, Height =1280
image 3 size width = 1081, Height =280 etc.... But
I want fix measurement [width= 3.375” x Height = 2.125“] in code Please Help

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