File format options

When you export PDFs to different file formats using the Save As command, each file format includes unique conversion settings.

If you want to use the same settings every time you convert PDFs to a particular format, specify those settings in the Preferences dialog box. In the Convert From PDF panel, select a file format from the list and click Edit Settings. (Click the Default button at any time to revert to the default settings.)

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.

Filter
Lets you select a filtering algorithm.
None
Compresses the image without a filter. Recommended for indexed-color and bitmap-mode images.

Sub
Optimizes the compression of images with even horizontal patterns or blends.

Up
Optimizes the compression of images with even vertical patterns.

Average
Optimizes the compression of low-level noise by averaging the color values of adjacent pixels.

Paeth
Optimizes the compression of low-level noise by reassigning adjacent color values.

Adaptive
Applies the filtering algorithm—Sub, Up, Average, or Paeth—best suited for the image. Select Adaptive if you are unsure of which filter to use.

RGB/Grayscale
Specifies the type of color management for the output file and whether to embed an ICC profile.

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 ppi, are suitable only for small page sizes (up to 6.826 inches or 173.380 millimeters).

TIFF options

TIFF is a flexible bitmap image format supported by virtually all paint, image-editing, and page-layout applications. Resolution is determined automatically.

Monochrome
Specifies a compression format. CCITTG4 is the default and generally produces the smallest file size. ZIP compression also produces a small file.
Note: Some applications cannot open TIFF files that are saved with JPEG or ZIP compression. In these cases, LZW compression is recommended.

RGB/CMYK/Grayscale/Other
Specifies the type of color management for the output file.

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 ppi, are suitable only for small page sizes (up to 6.826 inches or 173.380 millimeters).

Microsoft Word & RTF options

You can export a PDF to Word format (DOCX or DOC) or Rich Text Format (RTF). The following options are available.
Retain Flowing Text
Specifies that text flow must be retained.

Retain Page Layout
Specifies that page layout must be retained.

Include Comments
Exports comments to the output file.

Include Images
Exports images to the output file.

Run OCR if needed
Recognizes text if the PDF contains images that contain text.

Set Language
Specifies the language setting for OCR.

Spreadsheet and HTML options

Include Images
Specifies if images are exported when you export a PDF as HTML.

Run OCR if needed
Recognizes text if the PDF contains images that contain text.

Set Language
Specifies the language setting for OCR.

PostScript or Encapsulated PostScript (EPS) options

You can export a PDF to PostScript® for use in printing and prepress applications. The PostScript file includes full DSC (Document Structuring Conventions) comments and other advanced information preserved by Adobe Acrobat Distiller®. You can also create an EPS file from any PDF for placement or opening in other applications. The options available depend on whether you are converting a document to PostScript or EPS.

Printer Description File
The PostScript Printer Description (PPD) provides the necessary information to format a PostScript file correctly for a particular output device. Device Independent creates only composite (not color-separated) PostScript or EPS files. Acrobat Default provides a starting point and reference for creating all types of PostScript and restores all default settings for the conversion. Adobe PDF 7.0 is compatible with most devices. This option is available only for PostScript (PS) format.

ASCII or Binary
Specifies the output format of image data. Binary output yields smaller files, but not all workflows can accommodate binary output.

PostScript
Specifies the level of PostScript compatibility. Use Language Level 3 only if the target output device supports it. Language Level 2 is suitable for EPS files that will be placed in another document and color-separated as part of that document. Use Language Level 2 for EPS files that you import into Microsoft applications.

Font Inclusion
Specifies the fonts to be included in the PostScript. Embedded fonts are taken from the PDF; the referenced fonts are taken from the computer in use.

Include Comments
Preserves the appearance of comments in the resulting PostScript file.

Convert True Type to Type 1
Converts TrueType fonts to Type 1 fonts in the resulting PostScript file.

Include Preview
Specifies if a TIFF preview is created for the resulting EPS file. This option is not available when saving as PostScript.

Page Range
Specifies the pages you want to export. When you export files to EPS output, each page in the range is saved as a separate EPS file.

Text and XML options

Encoding
Refers to the binary values, based on international standards, used to represent the text characters. UTF-8 is a Unicode representation of characters using one or more 8-bit bytes per character; UTF-16 represents characters using 16-bit bytes. ISO-Latin-1 is an 8-bit representation of characters that is a superset of ASCII. UCS-4 is a Universal Character Set coded in 4 octets. HTML/ASCII is a 7-bit representation of characters developed by ANSI.

Use Mapping Table Default uses the default character encoding defined in mapping tables, which appear in the Plug-ins/SaveAsXML/MappingTables folder. These mapping tables specify many characteristics of how the data is output, including the following default character encodings: UTF-8 (Save as XML or HTML 4.0.1) and HTML/ASCII (Save as HTML 3.2).

Generate Bookmarks
Generates bookmark links to content for HTML or XML documents. Links are placed at the beginning of the resulting HTML or XML document.

Generate Tags For Untagged Files
Generates tags for files that are not already tagged, such as PDFs created using Acrobat 4.0 or earlier. If this option is not selected, untagged files are not converted.
Note: Tags are applied only as part of the conversion process and are discarded after the conversion. This is not a method for creating tagged PDFs from legacy files.

Generate Images
Controls how images are converted. Converted image files are referenced from within XML and HTML documents.

Use Sub-Folder
Specifies the folder in which to store generated images. The default is Images.

Use Prefix
Specifies the prefix added to the image file names if you have several versions of the same image file. File names assigned to images have the format filename_img_#.

Output Format
Specifies the final format of images. The default is JPG.

Downsample To
Downsamples image files to the specified resolution. If you do not select this option, image files have the same resolution as in the source file. Image files are never upsampled.