Hi

I tried to convert one colored PDF file into TIFF file using Atalasoft SDK DotImage 6.0.
I set the resolution as 200. This application is created based on "PDF to TIFF conversion demo" sample provided by atalasoft. I opened the TIFF file and zoom it. After zooming image looks in blur. How can improve the quality of the converted image?

Note: If i am using more resolution, then the quality is good, but some large size (> 2.5MB) image files failed to convert into TIFF. Getting the error message "Failed to allocate pixel memory"
 

Thanks in advance
Soney 

A PDF does not have a resolution and can be zoomed into at any size, and the result will always look good.  But, a TIFF is a bitmap -- it has a specific resolution and when you zoom in, the vector object that were in the PDF are gone -- all you can do is resample the TIFF.  The higher the resolution the better it will look, but then you need more pixels, and that will make the file larger and use more memory as you have discovered.

There is no way to have a TIFF that can zoom in like a PDF. 

If you are trying to zoom out and want the image to look good, make sure you are using our Document Imaging edition and keep ScaleToGray set to on -- then, if you have a black and white image, we will automatically convert to grayscale while zooming out so that the resized image looks good.