Yes it is possible. i have created lot of articles in which i have explained breifly the Tools that are used for cracking passwords for zips files, pdfs, rar etc. have a visit Hackers Field Tips & Tricks
Open Passkey. You might have to choose your Windows or Mac operating system from the drop-down menu at the top (depending on which operating machine you are using). 2. Click on your PDF file from the drop-down menu on the left bottom corner to open it. 3. To crack the PDF password, you need to enter the corresponding combination of letters and numbers in the Passkey. When you click on the 'Start Crack' button you need to select a specific type of PDF password (I chose 832) 4. On the left pane, under destination' press change' button. 5. Choose save as PDF' as the new destination on the popup Window. 6. On the left pane, under destination' click on the option 'Start Crack' 7. On the right pane, under the 'File' tab, select your newly opened PDF file. In the left pane, select the 'Word' option. On the right.