The Sejda PDF blog
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Feature update: Compress & Grayscale, keep high resolution images

We’ve updated our Compress PDF tool with two more options that you might find useful. Compress images to grayscaleWhen we’re compressing a PDF document most of the times the dramatic reduction in file size comes from optimising the images inside. Most of the times this is done by scaling down high resolution images to a lower yet reasonable quality. Most of the times images can be further reduced in size by converting them from colour to grayscale.