PDF defines a standard date format,
which closely follows that of the
international standard ASN.1
(Abstract Syntax Notation One),
defined in ISO/IEC 8824 (see the
Bibliography). A date is a string of
the form
(D:YYYYMMDDHHmmSSOHH'mm')
where
YYYY is the year
MM is the month
DD is the day (01-31)
HH is the hour (00-23)
mm is the minute (00-59)
SS is the second (00-59)
O is the relationship
of local time to Universal Time
(UT), denoted by one of the
characters +, -, or Z (see below)
HH followed by ' is
the absolute value of the offset
from UT in hours (00-23)
mm followed by ' is
the absolute value of the offset
from UT in minutes (00-59)
The quotation mark character (')
after HH and mm is part of the
syntax. All fields after the year
are optional. (The prefix D:,
although also optional, is strongly
recommended.) The default values for
MM and DD are both 01; all other
numerical fields default to zero
values. A plus sign (+) as the value
of the O field signifies that local
time is later than UT, a minus sign
(-) that local time is earlier than
UT, and the letter Z that local time
is equal to UT. If no UT information
is specified, the relationship of
the specified time to UT is
considered to be unknown. Whether or
not the time zone is known, the rest
of the date should be specified in
local time.
For example, December
23, 1998, at 7:52 PM, U.S. Pacific
Standard Time, is represented by the
string,
D:19981223195200-08'00'
OR
D:20140327195230+05'00'
For example, you can set following date options in Advanced PDF Tools GUI version,
If your PDF file is contain metadata, you need choose "Remove metadata" option under "Optimize" tab too,
Click "Change" button to modify Dates in PDF file.
Open the modified PDF file in Adobe Acrobat, you will see the "Created Date" and "Modified Date" have been changed,
If you are using Advanced PDF Tools Command Line software, you can use "-m" and "-d" options to set CreateDate and ModifyDate values to PDF file,
pdftools.exe -i "C:\input.pdf" -o
"C:\output.pdf"
-m
"D:YYYYMMDDHHmmSSOHH'mm'"
pdftools.exe -i "C:\input.pdf" -o
"C:\output.pdf"
-d
"D:YYYYMMDDHHmmSSOHH'mm'"
e.g.,
pdftools.exe -i "C:\input.pdf" -o
"C:\output.pdf"
-d
"D:20040930122809-07'00'"
-m
"D:20040930122809-07'00'"
Advanced PDF Tools Command Line User Manual
pdf-tools-command-line.htm
advanced-pdf-tools-command-line-guide.html
See also:
How to Optimize PDF
Files for Web Sites?
How to Compress your PDF
files?
PDF Tools Command Line
options
PDF
Compression Command Line options
JPEG2000 compression in
Advanced PDF Tools
Modify Custom Properties
in Advanced PDF Tools
Scale your PDF pages
with PDF Tools and docPrint
VeryPDF JBIG2 Compression Engine
Understanding "Flavors" of PDF
What is
PDF/A? What is PDF/X?
Comparison between JPEG and JPEG
2000
How to edit create date using
Advanced PDF Tools Command Line?
