A lot of additional information about the properties and characteristics of each PDF is stored within each PDF file. And that is what is called the summary or summary of the PDF.
In order to modify or edit such information, what you need is a program such as PDF Summary Maker, which will allow you to alter the data of the creation / modification date, author, title, subject, keywords, comments, and so on.
For the correct operation of PDF Summary Maker you must have previously installed Adobe Acrotat 5.0 or higher (except 7.0 and 7.0.3, which bring problems in the summary).
You can free download PDF Summary Maker and safe install the latest trial or new full version for Windows 10 (x32, 64 bit, 86) from the official site.
Devices: Desktop PC, Laptop (ASUS, HP, DELL, Acer, Lenovo, MSI), Ultrabook
OS: Professional, Enterprise, Education, Home Edition, versions: 1507, 1511, 1607, 1703, 1709, 1803, 1809