Operation Manual

106
USING ACROBAT X STANDARD
Saving and exporting PDFs
Last updated 10/11/2011
More Help topics
“Convert PDFs to Word, RTF, spreadsheets or other formats” on page 109
“Export images to another format” on page 110
“Export selections to another format” on page 110
Image conversion settings
JPEG and JPEG 2000 options
If your PDF contains a collection of images, you can export them individually as JPEG, PNG, or TIFF files by choosing
Tools > Document Processing > Export All Images.
Note that the options available depend on whether you are exporting a document to JPEG or JPEG 2000.
Grayscale/Color Specifies a compression setting that balances file size with image quality. The smaller the file, the
lesser the image quality.
Tile Size Divides the image being compressed into tiles of the given size. (If the image height or width is not an even
multiple of the tile size, partial tiles are used on the edges.) Image data for each tile is individually compressed and can
be individually decompressed. The default value of 256 is recommended. This option is available only for JPEG 2000
format.
Format Determines how the file is displayed. Available only for JPEG format.
• Baseline (Standard) Displays the image when it has fully downloaded. This JPEG format is recognizable to most
web browsers.
• Baseline (Optimized) Optimizes color quality of the image and produces smaller file sizes but is not supported by
all web browsers.
• Progressive (3 scans-5 scans) Downloads the image first as a low-resolution image, with incremental quality
improvements as downloading continues.
RGB/CMYK/Grayscale Specifies the type of color management to be applied to the output file and whether to embed
an ICC profile.
Note: If you use the Save As or Export All Images command on a PDF that contains JPEG and JPEG 2000 images, and
export the content to JPEG or JPEG 2000 format, the resulting image may look different when opened in Acrobat. This
can happen if the images have a color profile included at the page level but not inside the image data. In this case, Acrobat
cannot bring the page-level color profile into the resulting saved image.
Colorspace/Resolution Specifies a color space and resolution for the output file. You can let Acrobat determine these
settings automatically. To convert color images in the file to shades of gray, choose Grayscale.
Note: Higher resolutions, such as 2400 pixels per inch (ppi), are suitable only for small page sizes (up to 6.826 inches or
173.380 millimeters).
PNG options
PNG format is useful for images that will be used on the web.
Interlace Specifies if the image is interlaced. None creates an image that displays in a web browser only after
downloading is complete. Adam7 creates an image that displays low-resolution versions in a browser while the full
image file is downloading. Adam7 can make downloading time seem shorter and assures viewers that downloading is
in progress; however, it increases file size.