Ink usage is usually described by the printer manufactures as so many pages of A4 using 5% coverage. APFill Ink & Toner Coverage Meter program helps you calculate ink coverage (calculate toner coverage) on the page before printing expressed as a percentage. So you will be able to estimate cost price of the page.
Key features:

Measure the ink coverage of the highlighted screen area (while previewing the page in a graphic editor before printing, for example.)
Measure the ink coverage of every page or average document coverage of a PostScript or PDF file (*.ps,*.pdf) with CMYK separation (up to 8 color spots). To use this feature, you will also need to install GPL Ghostscript 8.61 for Win32.
Measure the perimeter of a selected area of the screen.
Selected area surface measurement (The "Area (auto)" feature allows you to measure the area filled in with a specified color on the screen.
Area measurement results can be displayed either in pixels or in user-defined units, which can be set up in "Measuring Scale".

SoftSea.com had fully tested and uploaded the install files, APFill - Ink Coverage Meter does not contain any adware or spyware, the latest version is 5.5.5683, you can download this software (3.64 MB) from special server of SoftSea.com.

The license of this software is Free Trial Software, the price is $99, you can free download and get a free trial before you buy. If you want to get a full or nolimited version of APFill - Ink Coverage Meter, you can buy this desktop publishing software software.