computer science pdf

PDF/A-1a ensures that text is extractable from the document

It is a relatively slower optionUse this option only if you want to edit all pages or convert all pages to editable text

Initially, the language is set to the default locale and the other options are disabledAny changes to these settings remain persistent and are applied when you enter in the edit mode (Tools > Edit PDF)Turn off or disable automatic OCR for scanned documents The OCR is turned on by default

Therefore, when you open a scanned document for editing, the current page is converted to editable textDepending on whether you want to convert your scanned documents to editable text or not, you can turn off/on the automatic OCR option

TO TURN OFF/ON AUTOMATIC OCR: Choose Tools > Edit PDF

To turn off automatic OCR, do the following: In the right pane, clear the Recognize text checkboxChange the Cursor Coordinates measurement units In the Preferences dialog box under Categories, select Units & Guides

Choose a different unit of measurement from the Page & Ruler Units drop-down listAsian language PDFs You can use Acrobat to view, search, and print PDF documents that contain Asian text (Traditional and Simplified Chinese, Japanese, and Korean)

You can also use these languages when you fill in forms, add comments, and apply digital signaturesAlmost all of the Acrobat features are supported for Traditional and Simplified Chinese, Japanese, and Korean text if you install the respective Asian language font packs