Compressing bitmaps

You can reduce the size of a PDF file by compressing bitmaps. Bitmap compression is available for JPEG and LZW bitmaps. Bitmaps using JPEG compression have a changeable quality scale ranging from 2 (high) to 255 (low). The higher the image quality, the larger the file size.

To compress bitmaps with LZW

1 Click File, Publish To PDF.

2 Click the Objects tab.

3 Choose LZW from the Compression Type list box.

To compress bitmaps with JPEG

1 Follow steps 1 and 2 from the previous procedure.

2 Choose JPEG from the Compression Type list box.

3 Type a number between 2 and 255 in the Quality Factor box.

• You can also specify the JPEG compression quality by moving the Quality Factor slider.

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