Batch to check file size before proceed to printing - batch-file

Question

This batch currently im using to print our daily report from a website then saved it as pdf (as a backup) and print one hard copy.
During saving the pdf, there will be 2 different size of pdf files generated daily(1 day 1 pdf only). Size of some pdf will be more than 20kb which contain our daily report and some will be around 9kb (8485bytes) (empty report because that day no sales).
My target now to save paper by preventing those empty report will not be print on that day. So how to add some code into my current code so that before printing, batch will check for file size before go to printing job. If possible, I want to create a msgbox too so that user will be prompt when no pdf will be print because of report empty.
Refer to code below:
Setting date parameter
Creating folder and subfolders
Using wkhtmltopdf to webpage to PDF
Check file size before printing
This is what I want to add. If generated pdf size more that 9kb, proceed to No 5 and No 6 automatically. Else, prompt user using msgbox "No report for today, Press OK to shutdown computer"
Printing
Shutting down computer
#echo off
title Daily Report to PDF
REM ---------------------------------------------------------------------------
REM 1. Setting date parameter
for /f "delims=" %%a in ('wmic OS Get localdatetime ^| find "."') do set date=%%a
set month=%date:~4,2%
if %month%==01 set monthname=January
if %month%==02 set monthname=Febuary
if %month%==03 set monthname=March
if %month%==04 set monthname=April
if %month%==05 set monthname=May
if %month%==06 set monthname=June
if %month%==07 set monthname=July
if %month%==08 set monthname=August
if %month%==09 set monthname=September
if %month%==10 set monthname=October
if %month%==11 set monthname=November
if %month%==12 set monthname=December
for /f %%i in ('wmic path win32_localtime get dayofweek ^| findstr [0-9]') do set dayofweek=%%i
if %dayofweek%==1 set dow=(Mon)
if %dayofweek%==2 set dow=(Tue)
if %dayofweek%==3 set dow=(Wed)
if %dayofweek%==4 set dow=(Thu)
if %dayofweek%==5 set dow=(Fri)
if %dayofweek%==6 set dow=(Sat)
if %dayofweek%==7 set dow=(Sun)
REM ---------------------------------------------------------------------------
REM 2. Creating folder and subfolders
set dir1="%USERPROFILE%\Desktop\TEST"
set day=%date:~6,2%
set months=%monthname:~0,3%
set year=%date:~0,4%
set fulldate=%day%%months%%year%%dow%
md %dir1%\"YEAR %year%"\%monthname% 2>NUL
cd %dir1%\"YEAR %year%"\%monthname%\
md a b c 2>NUL
REM ---------------------------------------------------------------------------
REM 3. Using wkhtmltopdf to webpage to PDF
set dir2="%USERPROFILE%\Desktop\TEST\YEAR %year%\%monthname%"
echo.
echo Saving report as %fulldate%.pdf
wkhtmltopdf -q -g https://www.google.com %dir2%\c\%fulldate%.pdf
echo.
REM ---------------------------------------------------------------------------
REM 4. Check file size before printing
REM ---------------------------------------------------------------------------
REM 5. Printing
echo Printing %fulldate%.pdf
echo.
echo "C:\\Program Files (x86)\Foxit Software\Foxit Reader\Foxit Reader.exe" /t %dir2%\c\%fulldate%.pdf
REM ---------------------------------------------------------------------------
REM 6. Shutting down computer
shutdown -s -t 60 -c
PAUSE
::EXIT

Answer 1

Here's an example batch-file which tries to mimic your posted example and which includes some changes, predominantly the Setting of date variables.
#Echo Off
Title Daily Report to PDF
Rem ------------------------------------------------------------------------
Rem 1. Setting date variables
Set "_WeekDays=Sunday Monday Tuesday Wednesday Thursday Friday Saturday"
For /F %%A In ('WMIC Path Win32_LocalTime Get /Value^
^|FindStr "[0-9]$"')Do Set "_%%A"
For /F "Tokens=1%_DayOfWeek%" %%A In (". . . . . . . . . %_WeekDays%"
)Do Set "_DayFullName=%%A"
Set "_DayShortName=%_DayFullName:~,3%"
For %%A In (Day Hour Minute Month Second
)Do Call Set "_%%A=0%%_%%A%%" & Call Set "_%%A=%%_%%A:~-2%%"
For %%A In (January.01 February.02 March.03 April.04 May.05 June.06
July.07 August.08 September.09 October.10 November.11 December.12
)Do If ".%_Month%"=="%%~xA" Set "_MonthFullName=%%~nA"
Set "_MonthShortName=%_MonthFullName:~,3%"
Set "_FullDateString=%_Day%%_MonthShortName%%_Year%%_DayShortName%"
Rem ------------------------------------------------------------------------
Rem 2. Creating folder and subfolders
Set "_Dir1=%UserProfile%\Desktop\TEST\YEAR %_Year%\%_MonthFullName%"
For %%A In (a b c)Do MD "%_Dir1%\%%A" 2>NUL
Rem ------------------------------------------------------------------------
Rem 3. Using wkhtmltopdf to convert webpage to PDF
Echo=
Echo Saving report as %_FullDateString%.pdf
wkhtmltopdf -q -g https://www.google.com "%_Dir1%\c\%_FullDateString%.pdf"
Echo=
Rem ------------------------------------------------------------------------
Rem 4. Printing files with sizes over 8485 bytes
Set "_Exe1=%ProgramFiles(x86)%\Foxit Software\Foxit Reader\Foxit Reader.exe"
For %%A In ("%_Dir1%\c\%_FullDateString%.pdf")Do If %%~zA GTR 8485 (
Echo Printing %%A&Echo=&"%_Exe1%" /t "%_Dir1%\c\%_FullDateString%.pdf")
Rem ------------------------------------------------------------------------
Rem 5. Shutting down computer
ShutDown /S /T 60
Note: This script assumes that the executable wkhtmltopdf is able to run from the current directory at the time the batch script is run.