PDF users always add securities that can limit unwanted access to a PDF by setting passwords or by restricting certain features like editing and printing. 2 types of Adobe PDF passwords are available, and here I am going to disclose you everything about these 2 passwords.
Also known as user password. With an open password, users must enter the password you set to open the PDF.
Also known as permission password. With an owner password, users don’t need to enter a password to open the PDF, but they have to enter the permission password to set or change the restricted features.
PDF can enforce various restrictions on documents operations, take a look at how these permission restrictions protect your PDF files.
Printing Allowed Specify the level of printing that users are allowed.
Changes Allowed Defines which editing actions are allowed.
Enable Copying of Text, Images, And Other Content (Available only for 128-bit RC4 or AES encryption) Allow users to select and copy the PDF contents.
Enable Text Access For Screen Reader Devices For The Visually Impaired Allow users with visual impairing to read the documents with screen reader but allow to copy or extract.
Check the following table to understand which restrictions each type of PDF Password puts on your protected files.
In conclusion, if you well understand how PDF password works to protect your files, you will find the most efficient and effective way to protect even unprotect your PDFs. You won’t be stuck with annoying troubles like removing password protection or recover PDF password any more.
It's surprising how much disk space duplicated files such as music, videos and photos can take. A duplicate video can take up much more space than a duplicate music or photo, a 5-minute video in .flv format takes up about 12MB. So removing these duplicate videos can free up more space on Mac.
It is common knowledge that most of the storage space in an average user’s Mac is used up by such duplicate photos and images. Removing duplicate photos manually is time consuming and annoying task. How to easily and quickly find and delete those same pictures and photos? This article will recommend you top five duplicate photo cleaner and make comparison to decide which one is the best choice for you.
Music lovers always download as many as MP3 songs from popular music websites. Sometimes they even download one music file twice, from month to month, many duplicate MP3 files are downloaded and take up space on Mac. Removing these duplicate music files becomes a much vexed problem. The efficient way of getting rid of duplicate MP3 music files on Mac is with a music file duplicate finder software.
Top PDF Articles
Sign up for Cisdem newsletters, stay informed on the latest products news, the hottest deals, and our holiday special sales.