To get the quality of output you want and also keep the file size as small as possible, the resolution of the TIFF images needs to be set to 120dpi. This resolution is the closest match to the screen resolution Adobe uses to display the text, meaning the created image will be the closest possible match to how the PDF looks when viewed in Adobe.
The other issue affecting file size is the necessity of keeping the color in the image. To keep the color, but minimize the size of the file, the TIFF Image Printer’s color reduction option, Reduce to optimal palette, is used. This option works on a page by page basis and reduces the colors needed to store the image without affecting the quality of the image.
It all comes down to balancing the quality of the results and the file size in order to get images that meet your needs.
How This is Done
- Open your PDF document in Adobe Reader and select File-Print, or Ctrl+P to print the file.
- On the Print dialog, select TIFF Image Printer and then click the Advanced button.
- Back on the Print dialog click the Properties button to set the TIFF Image Printer 11.0 properties.
On the TIFF Image Printer Advanced Options dialog, set the Print Quality to 120 x 120 dots per inch and click OK to save the changes.
- Back on the TIFF Image Printer Document Properties dialog, select the Save tab.
- Set the Color Reduction to Reduce to optimal palette. This option keeps only the colors actually used in the image. By storing fewer colors, the file size will be reduced.
- You may also need to experiment with the Dithering Method selected. Depending on the original PDF contents the default of Halftone may not produce the quality needed. Floyd-Steinberg and Burkes are common alternatives that can produce clearer images.
Click OK to save these changes and return to the Adobe Print dialog.
- Click on Print to send the PDF document to TIFF Image Printer 11.0.
- A Save Image File prompt will appear. If you cannot see this dialog, look for a new icon in your taskbar as it may have appeared behind another window.
And that’s how we achieved just the right TIFF file that the client was looking for!