How to solve problems with Macintosh PICT Format files. One common mistake in creating and opening Acts is the characterizations of the number of bits in the file (the size of the data) and the number of bits in the image (the number of pixels). In the following paragraphs we explain why this can cause problems with you and how to avoid them. PCT Image size or file format — What is it? How to open an PCT image file? To begin with, you will need to determine the file type (file format) of the image. The picture format of Macintosh Quicker's Quicker Mac, was a PICT (Picture File) format, created for saving the Macintosh PICT image file as a Quicker file. You can only save the image to a Quicker with the Quicker Macintosh File System tool set to open in the Macintosh PICT format. For example: You have a PCT image file named “My Picture.PCT.ai”. You try to open this file as an iMac PICT file. The Mac Quicker is not interested because the file is too small... so your image file is not saved. It's ok. Mac Quicker understands that you are using a Macintosh PICT file, but Mac Quicker is also limited. You can only open up to 80 columns in the PICT file. If you are working with large images, you need to look into other file format options. The example you are working with above has 80 columns in it. You'll only be able to open up to 10 images for each PCT file (remember that iMac Quicker does not accept any other file type). How to determine the image format of an image file? You can use the image analysis tool in the Quicker Program File Manager. Mac Quicker will automatically open the image analysis tool when it starts up the application. Right-click on the image and select “Open in Quicker”. Mac Quicker will open the image analysis tool and load up the image. The image will appear in the Quicker view. How to open a .PCT file and what to do if it's out of view, or you can't load the image. — PCT Viewer The image analysis tool allows you to get some information about the image file.