With PictureViewer, you can either save an image directly in PhotoJazz format, or you can save it as a PhotoJazz image embedded in a QuickDraw Picture ('PICT') file or a QuickTime Image File ('qtif').
Note that PictureViewer saves an image at the spatial transformation currently displayed, including the scaling, reflection, and rotation. This means that if you want a perfect-fidelity compressed PhotoJazz version of the original, you need to display the image at the original resolution (Image > Normal Size) before exporting it. In contrast, note that the display pixel format has no effect on the exported pixel format. See the section on Pixel Formats for details.

PICT Files

PhotoJazz Files

QTIF Files

PhotoJazz Files

To save an image in PhotoJazz format from PictureViewer:

1. Display the image at the desired resolution (Image > Normal Size to maintain the original resolution).
2. Select File > Export….
3. Select PhotoJazz in the pop-up menu at the bottom of the Save As dialog.
4. Click Save in the Save As dialog.

PictureViewer automatically appends the image file type name to the default name in the Save As dialog. The file type name for PhotoJazz image files is ".jzz". In Windows, UNIX, and other non-Macintosh operating systems, this file-name extension is what distinguishes the file type for the file system. If you are creating PhotoJazz image files on the Macintosh for exchange with other platforms, be sure to use this type-name suffix.

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PICT Files

To save an image in QuickDraw Picture ('PICT') format using PhotoJazz compression:

1. Display the image at the desired resolution (Image > Normal Size to maintain the original resolution).
2. Select File > Export….
3. Select PICT in the pop-up menu at the bottom of the Save As dialog.
4. Click Options… to open the PICT Options dialog.
5. If the source image is already compressed with PhotoJazz, then:
   1. Check Don't recompress.
   2. Click OK to confirm the options.
   If the source image is not a PhotoJazz image, then;
   1. Uncheck Don't recompress.
   2. Click Options… to open the Compression Settings dialog.
   3. Select PhotoJazz in the Compressor pop-up menu.
   4. Select Best Depth in the pixel-format pop-up menu to preserve the pixel format of the source image¹.
   5. Click OK to apply the compression settings.
   6. Click OK in the PICT Options dialog to confirm the options.
6. Click Save in the Save As dialog.

¹The 256 Colors pixel format is not supported by PhotoJazz. It is listed in the pixel-format pop-up because QuickTime does not distinguish here between 8-bit grayscale (which PhotoJazz does support) and 8-bit color (which PhotoJazz doesn't support).

Note that the Quality slider in the Compression Settings has no effect on the compression quality of the PhotoJazz PICT image, which is always perfect.

If you save an image in PhotoJazz format in a QuickDraw Picture ('PICT') file, the image will be openable by any application that can open PICT files, which includes essentially all Macintosh applications that can open any image files at all, including SimpleText! The drawback is that the PhotoJazz PICT file is about 924 bytes bigger than the PhotoJazz image file itself.

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QTIF Files

To save an image in QuickTime Image File ('qtif') format using PhotoJazz compression:

1. Display the image at the desired resolution (Image > Normal Size to maintain the original resolution).
2. Select File > Export….
3. Select QuickTime Image in the pop-up menu at the bottom of the Save As dialog.
4. Click Options… to open the QuickTime Image Options dialog.
5. If the source image is already compressed with PhotoJazz, then:
   1. Check Don't recompress.
   2. Click OK to confirm the options.
   If the source image is not a PhotoJazz image, then;
   1. Uncheck Don't recompress.
   2. Click Options… to open the Compression Settings dialog.
   3. Select PhotoJazz in the Compressor pop-up menu.
   4. Select Best Depth in the pixel-format pop-up menu to preserve the pixel format of the source image¹.
   5. Click OK to apply the compression settings.
   6. Click OK in the QuickTime Image Options dialog to confirm the options.
6. Click Save in the Save As dialog.

¹The 256 Colors pixel format is not supported by PhotoJazz. It is listed in the pixel-format pop-up because QuickTime does not distinguish here between 8-bit grayscale (which PhotoJazz does support) and 8-bit color (which PhotoJazz doesn't support).

Note that the Quality slider in the Compression Settings has no effect on the compression quality of the PhotoJazz QuickTime image, which is always perfect.

If you save an image in PhotoJazz format in a QuickTime Image File ('qtif'), the image will be openable by any application that can open QuickTime Image files. Ordinarily, an application that can open QuickTime Image files should also be able to open PhotoJazz image files, but some applications only open files from a fixed list of types. A PhotoJazz QuickTime Image file is only about 142 bytes longer than the PhotoJazz image file itself, so it wastes less space than a PhotoJazz PICT file.

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