Are PDFs open source?

Related questions

1. Why are my PDF files opening in Word?
2. Is there a truly free PDF editor?
3. Why do my PDF files open in Word?
4. How do I open a PDF file without opening it?
5. Why my pdf file is not opening?
6. What software can open PDF files?
7. Can you convert PDF to Word?
8. Can I edit a PDF file in Word?

Tags

1. #acrobat
2. #logic
3. #reader
4. #buttons
5. #international
6. #maintained
7. #organization
8. #standard
9. #fields
10. #video
11. #links
12. #adobe
13. #standardization
14. #invented
15. #business
16. #viewed
17. #contain
18. #software
19. #signed
20. #electronically
21. #using
22. #audio
23. #easily