Don't worry, I will help you.
Before you start, make sure that the document, which you scanned earlier, contains live text that you can select and change. If you can't select the text, you need to run Optical Character Recognition (OCR)
on the document. To know how, look below:1.
As you are using Adobe Acrobat X
, select Tools > Recognize Text > In This File
Now you need to use the Edit Document Text tool
to select the text that you want to edit. You can find this tool in the Content panel
on the Tools
Once you have selected the text, right-click on it and choose Properties
. Make sure the Text tab
Now open the Font menu in the Text tab. The fonts shown above the line are the custom fonts, and the fonts shown below the line are the local fonts (system fonts).5.
Now select a font which is shown below the line that closely matches the custom font.6.
Select a font size that closely matches the custom font.
You are done. Now you can easily edit your scanned PDF file.
Hope this would be helpful.