Turn On Highlight Document For Free

Sometimes, scanned images are bundled and merged into a PDF file. Such a file can be described as a scanned PDF. They differ from standard PDFs in that editing them is usually not possible. If you cannot highlight or select text in a PDF, the file might probably be a scanned copy and cannot be edited.

Most likely because the file is composed of images (possibly scans) and does not contain any "real" text. If you can't select the text with the text selection tool then you can't highlight it, either. Use other markup tools, like the Square tool, instead.

Click and drag the cursor to select the area of text you want to highlight. A small toolbox will appear above your text. Select the highlighter tool icon and it will automatically highlight your selected text. To modify, click on the highlighted area, and a new toolbox will appear.

How to unlock a PDF to remove password security: Open the PDF in Acrobat. Use the ?Unlock? tool: Choose ?Tools? > ?Protect? > ?Encrypt? > ?Remove Security.?

Please go to Mac OS System Preferences > Display > Display , check the box Increased Contrast. Others have reported that changing the Display Contrast slider position has the most effect on the highlight color.

One of the most important reason due to which users can't highlight text in PDF document is the ?Comment Restrictions?. When this type of security is applied on the PDF files, the Adobe Reader ?Highlight Tool? stops working or gets greyed out.

Select the highlighter tool from the horizontal toolbox located at the top of the PDF editor. Select the desired color of your highlighter tool. Click and drag the cursor to select the text area to highlight, releasing when you've finished.