Want to edit text, but do not have the font

Question

Hello:
I have a certificate in a pdf file, and I have Adobe Acrobat XI. The file contains the fonts Shalom Old Style (only a couple of Hebrew words) and the font Sanvito.
Since I have neither font in Windows 7, I assume (also after having tried) that I cannot edit/change text in the pdf file. I converted to Word 2010 and made the changes, but, of course, it selected other fonts, and I could not convert back to pdf with the correct fonts.
Seems one can download fonts for free on the Web, but I am leery for two reasons: they usually are not free (and I am willing to pay) and the risk for malware is, I believe, high.
I would greatly appreciate your comments and assistance, esp. some source for not too expensive fonts (If I need them).
Regards,
Hans L

Answer 1

If you have an iPad 1, the max iOS is 5.1.1. For newer iPads, the current iOS is 7.0.2. The Settings>General>Software Update only appears if you have iOS 5.0 or higher currently installed.
iOS 5: Updating your device to iOS 5 or Later
http://support.apple.com/kb/HT4972
How to install iOS 6
http://www.macworld.com/article/2010061/hands-on-with-ios-6-installation.html
iOS: How to update your iPhone, iPad, or iPod touch
http://support.apple.com/kb/HT4623
If you are currently running an iOS lower than 5.0, connect the iPad to the computer, open iTunes. Then select the iPad under the Devices heading on the left, click on the Summary tab and then click on Check for Update.
Tip - If connected to your computer, you may need to disable your firewall and anitvirus software temporarily.  Then download and install the iOS update. Be sure and backup your iPad before the iOS update. After you update an iPad (except iPad 1) to iOS 6.x, the next update can be installed via wifi (i.e., not connected to your computer).
Tip 2 - If you're updating via wifi, place your iPad close to your router to preclude getting a corrupted download.
 Cheers, Tom