The choices you make in the Combine Files wizard determine whether the files are merged into a single PDF or combined into a PDF package.
Conversion settingsConversion settings affect all files that will be converted to PDF from other file formats. The three options available in the Combine Files wizard apply three different conversion presets.
You can customize the default conversion preferences (choose Edit > Preferences, select Convert To PDF under Categories, and then specify the settings you want to use).
Reduces large images to screen resolution and compresses, using low-quality JPEG. Suitable for on-screen display, email, and the Internet.
Creates PDFs suitable for reliable viewing and printing of business documents.
Applies the High Quality Print conversion preset.
Opens the Options For Conversion Settings dialog box, which contains the following options:
Improves the readability for users with disabilities and on small-screen devices.
Converts existing bookmarks in different native file formats to Adobe PDF bookmarks.