: Problems in Saving as pdf - image resolution decreases and text resolution remains same i have been facing this problem many times. When ever i save any high resolution image in PDF format,

@Si6392903

Take a good look at your resolution unit in the “Image Size” window. It's “pixels/cm”. Yet, in your PDF output setting you have “downsample image to 300 pixels/inch when it's bigger than 450 pixels/inch”. 300 pixels/cm is equivalent to 762 pixels/inch (pixels/inch = 2.54 * pixels/cm). So your image (762 PPI) is downsampled to 300 PPI. Voilà! Recipe for a problem :}

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@Nimeshi706

On screen, it's the pixel width and pixel height which are used.

In print, the width and height are greatly effected by the overall ppi of the image. Photoshop does not use PPI for on screen display. It uses the pixel with and height. However, when you print the PPI is then factored in.

PDF files are assumed to be for printing. They generally use the width, height, and ppi of any image to determine its overall size.

These previous questions regarding resolution, PPI and DPI may be helpful:


What's the difference between 72ppi and 300ppi?
Is it mandatory to keep images at 72DPI for web design?

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