Isis Imaging offers the following products at no cost:

Isis Viewer

The best tool for viewing PDFs at any resolution and navigating through the pages. Compatible with Macintosh OS 10.4 and OS 10.5.

Test Patches.tif

Use this test form to accurate view and measure all 256 gray levels.

Grayscale Test Form

Check the accuracy of grayscale reproduction. (An instruction page in PDF is included.)

Isis Duotones folder.sit (10.4 Mb)

Duplicate Adobe System Incorporated standard collection of duotones compatible with any ICC supporting application and a grayscale photo.

All profiles are tested on Macintosh computers with ColorSync 3.0

All profiles are compressed with Aladdin System's Stuffit Expander