Existe uma aplicação freeware baseada em AppleScript com o nome de Sequimago , que deve satisfazer os seus requisitos de forma admirável. Está disponível em esta página no MacScripter , um site do fórum onde Martin Michel, Sequimago's autor, é um administrador.
Esta é a descrição dele do programa:
Requirements
Mac OS X 10.5 Leopard • QuickTime 7.2.1Installation & Usage:
Download and extract the ZIP archive. Then open the script with a double click or drop a bunch of image files onto its icon. The script will then ask you to specify a file name and location for the new QuickTime movie. After you provided certain settings for your image sequence (e.g. frames per second/seconds per frame), your image sequence will be produced.Supported Image Formats:
jpg, jpeg, gif, png, tiff, tif, psd, pict, bmp, pdf (only the first page of a PDF document is recognized)Notes:
Sequimago currently uses the JPEG image format for the image sequence, which results in a smaller file size of the QuickTime movie. But you can easily edit the Python script to use alternative image formats (e.g. TIFF). The Python script is located at: Sequimago.app/Contents/Resources/crtimgseq.py
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P.S. - Eu acho que você apreciará um comentário que ele fez ao explicar como ele chegou a escrever o programa:
I knew that you could easily create custom slide shows with QuickTime Pro, but why spent hard-earned $29.99 when you can get the same functionality free of charge by using built-in Mac OS X 10.5 technologies?