Bedienungsanleitung Adobe ACROBAT X STANDARD (Seite 111 von 352) (Englisch)

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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.

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