Create Period Pdf For Free

The Portable Document Format (PDF) was created by Adobe Systems, introduced at the Windows and OS/2 Conference in January 1993 and remained a proprietary format until it was released as an open standard in 2008.

Setting an expiration date for your PDFs can be essential when working with sensitive docs. Expiring PDFs are a safe way to restrict access to the file to some users or the public till a certain date and completely block access after its expiration date.

The main start of the PDF that we all know and love today came in 2001 with the release of Acrobat 5 and PDF 1.4. Overall, the PDF was finally able to function more efficiently for a variety of users rather than only those that used prepress. In 2003, Acrobat 6 and PDF 1.5 came out for the public to use.

' Version 1.0 of PDF was announced at Comdex Fall in 1992 where the technology won a 'best of Comdex' award. The tools to create and view PDF-files, Acrobat, were released in on 15 June 1993.

To quote from ISO 32000-08, "The first version of PDF was designated PDF 1.0 and was specified by Adobe Systems Incorporated in the PDF Reference 1.0 document published by Adobe and Addison Wesley.

BUT an easier solution is to create a Password for the PDF file and you can also prevent it from being printed or copied. Creating a PW protected PDF should encrypt the file so it would be completely useless to anyone without the password.

Once the PDF file is opened, click on the "File" tab in the top toolbar and then select "Properties" from the submenu. Here you will find the metadata of the PDF file such as the Author name, Subject, Keywords, created and modified date, and other advanced options.