Bedienungsanleitung Adobe ACROBAT X STANDARD (Seite 50 von 352) (Englisch)

618553

Zoom out

Zoom in

Vorherige Seite

1/352

Nächste Seite

USING ACROBAT X STANDARD

Creating PDFs

Last updated 10/11/2011

Optimize Scanned PDF dialog box

The Optimize Scanned PDF dialog box controls the image settings of how scanned images are filtered and compressed

for the PDF. Default settings are suitable for a wide range of document pages, but you may want to customize settings

for higher-quality images, smaller file sizes, or scanning issues.

Apply Adaptive Compression Divides each page into black-and-white, grayscale, and color regions and chooses a

representation that preserves appearance while highly compressing each type of content. The recommended scanning

resolutions are 300 dots per inch (dpi) for grayscale and RGB input, or 600 dpi for black-and-white input.

Color/Grayscale settings When scanning color or grayscale pages, select one of the following:

• JPEG2000 Applies JPEG2000 compression to the colored image content. (This setting is not recommended when

creating PDF/A files. Use JPEG instead.)

• ZIP Applies ZIP compression to the colored image content.

• JPEG Applies JPEG compression to the colored image content.

Note: The scanner uses either the selected Color/Grayscale option or the selected Monochrome option. Which one is used

depends on the settings you select in the Acrobat Scan dialog box or in the scanner’s TWAIN interface, which may open

after you click Scan in the Acrobat Scan dialog box. (By default, the scanner application dialog box does not open.)

Monochrome When scanning black-and-white or monotone images, select one of the following:

• JBIG2 (Lossless) & JBIG2(Lossy) Applies the JBIG2 compression method to black-and-white input pages. Highest

quality levels use the lossless method; at lower settings, text is highly compressed. Text pages typically are 60% smaller

than CCITT Group 4 compressed pages, but processing is slow. Compatible with Acrobat 5.0 (PDF 1.4) and later.

Note: For compatibility with Acrobat 4.0, use a compression method other than JBIG2.

• CCITT Group 4 Applies CCITT Group 4 compression to black-and-white input page images. This fast, lossless

compression method is compatible with Acrobat 3.0 (PDF 1.2) and later.

Small Size/High Quality Sets the balance point between file size and quality.

Deskew Rotates any page that is not square with the sides of the scanner bed, to make the PDF page align vertically.

Choose On or Off.

Background Removal Whitens nearly white areas of grayscale and color input (not black-and-white input).

For best results, calibrate your scanner’s contrast and brightness settings so that a scan of a normal black-and-white

page has dark gray or black text and a white background. Then, Off or Low should produce good results. If scanning

off-white paper or newsprint, use Medium or High to clean up the page.

Descreen Removes halftone dot structure, which can reduce JPEG compression, cause moire patterns, and make text

difficult to recognize. Suitable for 200–400-dpi grayscale or RGB input or, for Adaptive compression, 400–600-dpi

black-and-white input. The On setting (recommended) applies the filter for 300 dpi or higher grayscale and RGB

input. Select Off when scanning a page with no pictures or filled areas, or when scanning at a resolution higher than

the effective range.

Text Sharpening Sharpens the text of the scanned PDF file. The default value of low is suitable for most documents.

Increase it if the quality of the printed document is low and the text is unclear.

Scanning tips

• Acrobat scanning accepts images between 10 dpi and 3000 dpi. If you select Searchable Image or ClearScan for PDF

Output Style, input resolution of 72 dpi or higher is required, and input resolution higher than 600 dpi is

downsampled to 600 dpi or lower.

Missbrauch melden von Frage und/oder Antwort

Libble nimmt den Missbrauch seiner Dienste sehr ernst. Wir setzen uns dafür ein, derartige Missbrauchsfälle gemäß den Gesetzen Ihres Heimatlandes zu behandeln. Wenn Sie eine Meldung übermitteln, überprüfen wir Ihre Informationen und ergreifen entsprechende Maßnahmen. Wir melden uns nur dann wieder bei Ihnen, wenn wir weitere Einzelheiten wissen müssen oder weitere Informationen für Sie haben.

Adobe ACROBAT X STANDARD Seite 50

Brauchen Sie Hilfe? Stellen Sie Ihre Frage.

Missbrauch melden von Frage und/oder Antwort

Art des Missbrauchs:

Forenregeln

Neu registrieren

Das Handbuch wird per E-Mail gesendet. Überprüfen Sie ihre E-Mail.

Ihre Frage wurde zu diesem Forum hinzugefügt

Info