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Adobe Photoshop 5.x Technical Notes

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Troubleshooting technical notes for Adobe Photoshop version 2.5 through version 5.5 in PDF form.

This tech note PDF (the Manual Download, above), was sourced from the Adobe Photoshop 5.5 CD-ROM. It is the final collection of Photoshop troubleshooting tech notes to be bundled in with Adobe's Photoshop distribution and was since then, sourced only via Adobe online. It is now very difficult to locate troubleshooting tech note info, dealing with classic Macintosh versions of Photoshop online. Nor has the Wayback Machine's Internet Archive managed to keep copies of Adobe's online tech notes database of this period. It is added to this page as a central location and convenience for anyone interested in using Photoshop on classic Macintosh OS's.

Photoshop uses a scratch disk file (i.e., temporary disk space used for storing data and performing computations) when there is insufficient RAM for image editing. There can be two scratch disks in Photoshop 3.0.x and 4.0.x, and each can be up to 2 GB. Each scratch disk must be on a separate hard drive partition. This means in Photoshop 4.0.x and earlier if you have 5 GB free on an unpartitioned hard drive, and all scratch disks are assigned to it, Photoshop can use up to 2 GB of space in one scratch disk file. To use the full 4 GB, partition your hard drives so that there are as many partitions as there are scratch disks you want to use. In Photoshop 5.0, you can assign up to four partitions for scratch disk files. Although the scratch disk files still have a limit of 2 GB each, Photoshop 5.0 can write as many scratch disks per partition as there is free disk space. This means if you have 5 GB free on an unpartitioned hard drive, and all scratch disks are assigned to it, Photoshop 5.0 can use up to 5 GB of space in three scratch disk files (2 GB, 2 GB, 1GB).

Excerpt: Photoshop 5.x Technical Notes (page: 76)


Requires a minimum of Adobe Acrobat Reader v3.0 to view.

It covers troubleshooting all versions of Photoshop from 2.5 to 5.5, Mac and Windows. However, the technical solutions will also be relevant for all later versions of Photoshop that are capable of running on a classic Mac OS 9.2.2 or earlier, i.e.; Photoshop versions 6 and 7 inclusive.