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v2.6.1 - Explode - Added -e|--explode option to split a PDF into many…
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@tavinus
tavinus committed Jul 17, 2024
1 parent 44eb839 commit f5edee0
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3 changes: 2 additions & 1 deletion .gitignore
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Expand Up @@ -13,5 +13,6 @@ nppBackup
## Hidden files
.*

## Random file
## Random stuff
*.pdf
old
7 changes: 5 additions & 2 deletions README.md
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Expand Up @@ -133,8 +133,8 @@ $ pdfscale -v -v -r 'custom mm 200 300' -f disable -s 0.95 ../mixsync\ manual\ v

## Help info
```
$ ./pdfScale.sh --help
pdfScale.sh v2.6.0
$ ./pdfScale.sh -h
pdfScale.sh v2.6.1
Usage: pdfScale.sh <inFile.pdf>
pdfScale.sh -i <inFile.pdf>
Expand Down Expand Up @@ -165,6 +165,7 @@ Parameters:
-n, --no-overwrite
Aborts execution if the output PDF file already exists
By default, the output file will be overwritten
Does NOT work if using --explode
-m, --mode <mode>
Paper size detection mode
Modes: a, adaptive Default mode, tries all the methods below
Expand All @@ -175,6 +176,8 @@ Parameters:
s, gs Forces the use of Ghostscript (PS script)
-i, --info <file>
Prints <file> Paper Size information to screen and exits
-e, --explode
Explode (split) outuput PDF into many files (one per page)
-s, --scale <factor>
Changes the scaling factor or forces mixed mode
Defaults: 0.95 (scale mode) / Disabled (resize mode)
Expand Down
114 changes: 76 additions & 38 deletions pdfScale.sh
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Expand Up @@ -22,7 +22,7 @@
#
################################################################

VERSION="2.6.0"
VERSION="2.6.1"


###################### EXTERNAL PROGRAMS #######################
Expand All @@ -36,12 +36,12 @@ MDLSBIN="" # MacOS mdls Binary

##################### ENVIRONMENT SET-UP #######################

LC_MEASUREMENT="C" # To make sure our numbers have .decimals
LC_ALL="C" # Some languages use , as decimal token
LC_MEASUREMENT="C" # To make sure our numbers have .decimals
LC_ALL="C" # Some languages use , as decimal token
LC_CTYPE="C"
LC_NUMERIC="C"

TRUE=0 # Silly stuff
TRUE=0 # Silly stuff
FALSE=1


Expand All @@ -57,7 +57,8 @@ INFILEPDF="" # Input PDF file name
OUTFILEPDF="" # Output PDF file name
JUST_IDENTIFY=$FALSE # Flag to just show PDF info
ABORT_ON_OVERWRITE=$FALSE # Flag to abort if OUTFILEPDF already exists
ADAPTIVEMODE=$TRUE # Automatically try to guess best mode
EXPLODE_MODE=$FALSE # Turn explode mode (split) on or off
ADAPTIVE_MODE=$TRUE # Automatically try to guess best mode
AUTOMATIC_SCALING=$TRUE # Default scaling in $SCALE, disabled in resize mode
MODE="" # Which page size detection to use
RESIZE_PAPER_TYPE="" # Pre-defined paper to use
Expand All @@ -73,6 +74,7 @@ PGWIDTH="" # Input PDF Page Width
PGHEIGHT="" # Input PDF Page Height
RESIZE_WIDTH="" # Resized PDF Page Width
RESIZE_HEIGHT="" # Resized PDF Page Height
PAGE_RANGE="" # Pages to be processed (feeds -sPageList)

############################# Image resolution (dpi)
IMAGE_RESOLUTION=300 # 300 is /Printer default
Expand Down Expand Up @@ -146,15 +148,15 @@ EXIT_INVALID_IMAGE_RESOLUTION=51

# Main function called at the end
main() {
printPDFSizes # may exit here
isJustIdentify && printPDFSizes # may exit here
local finalRet=$EXIT_ERROR

if isMixedMode; then
initMain " Mixed Tasks: Resize & Scale"
local tempFile=""
local tempSuffix="$RANDOM$RANDOM""_TEMP_$RANDOM$RANDOM.pdf"
outputFile="$OUTFILEPDF" # backup outFile name
tempFile="${OUTFILEPDF%.pdf}.$tempSuffix" # set a temp file name
tempFile="${INFILEPDF%.pdf}.$tempSuffix" # set a temp file name
if isFile "$tempFile"; then
printError $'Error! Temporary file name already exists!\n'"File: $tempFile"$'\nAborting execution to avoid overwriting the file.\nPlease Try again...'
exit $EXIT_TEMP_FILE_EXISTS
Expand Down Expand Up @@ -214,30 +216,30 @@ initMain() {
isDryRun && sim="TRUE (Simulating)"
vprint " Dry-Run: $sim"
vPrintFileInfo
local exp="Disabled"
isExplodeMode && local exp="Enabled"
vprint " Explode Mode: $exp"
getPageSize
vPrintPageSizes ' Source'
vShowPrintMode
}

# Prints PDF Info and exits with $EXIT_SUCCESS, but only if $JUST_IDENTIFY is $TRUE
printPDFSizes() {
if [[ $JUST_IDENTIFY -eq $TRUE ]]; then
VERBOSE=0
printVersion 3 " - Paper Sizes"
getPageSize || initError "Could not get pagesize!"
local paperType="$(getGSPaperName $PGWIDTH $PGHEIGHT)"
isEmpty "$paperType" && paperType="Custom Paper Size"
printf '%s\n' "-------------+-----------------------------"
printf " File | %s\n" "$(basename "$INFILEPDF")"
printf " Paper Type | %s\n" "$paperType"
printf '%s\n' "-------------+-----------------------------"
printf '%s\n' " | WIDTH x HEIGHT"
printf " Points | %+8s x %-8s\n" "$PGWIDTH" "$PGHEIGHT"
printf " Millimeters | %+8s x %-8s\n" "$(pointsToMillimeters $PGWIDTH)" "$(pointsToMillimeters $PGHEIGHT)"
printf " Inches | %+8s x %-8s\n" "$(pointsToInches $PGWIDTH)" "$(pointsToInches $PGHEIGHT)"
exit $EXIT_SUCCESS
fi
return $EXIT_SUCCESS
VERBOSE=0
printVersion 3 " - Paper Sizes"
getPageSize || initError "Could not get pagesize!"
local paperType="$(getGSPaperName $PGWIDTH $PGHEIGHT)"
isEmpty "$paperType" && paperType="Custom Paper Size"
printf '%s\n' "-------------+-----------------------------"
printf " File | %s\n" "$(basename "$INFILEPDF")"
printf " Paper Type | %s\n" "$paperType"
printf '%s\n' "-------------+-----------------------------"
printf '%s\n' " | WIDTH x HEIGHT"
printf " Points | %+8s x %-8s\n" "$PGWIDTH" "$PGHEIGHT"
printf " Millimeters | %+8s x %-8s\n" "$(pointsToMillimeters $PGWIDTH)" "$(pointsToMillimeters $PGHEIGHT)"
printf " Inches | %+8s x %-8s\n" "$(pointsToInches $PGWIDTH)" "$(pointsToInches $PGHEIGHT)"
exit $EXIT_SUCCESS
}


Expand Down Expand Up @@ -523,6 +525,10 @@ getOptions() {
JUST_IDENTIFY=$TRUE
shift
;;
-e|--explode|--split)
EXPLODE_MODE=$TRUE
shift
;;
-s|--scale|--setscale|--set-scale)
shift
parseScale "$1"
Expand Down Expand Up @@ -659,7 +665,7 @@ getOptions() {

isEmpty "${_optArgs[2]}" || initError "Seems like you passed an extra file name?"$'\n'"Invalid option: ${_optArgs[2]}" $EXIT_INVALID_OPTION

if [[ $JUST_IDENTIFY -eq $TRUE ]]; then
if isJustIdentify; then
isEmpty "${_optArgs[1]}" || initError "Seems like you passed an extra file name?"$'\n'"Invalid option: ${_optArgs[1]}" $EXIT_INVALID_OPTION
VERBOSE=0 # remove verboseness if present
fi
Expand All @@ -673,20 +679,22 @@ getOptions() {

checkDeps

if [[ $JUST_IDENTIFY -eq $TRUE ]]; then
if isJustIdentify; then
return $TRUE # no need to get output file, so return already
fi

_tgtFile="${_optArgs[1]}"
local _autoName="${INFILEPDF%.*}" # remove possible stupid extension, like .pDF
local _exSuffix=""
isExplodeMode && _exSuffix='.Page%d'
if isMixedMode; then
isEmpty "$_tgtFile" && OUTFILEPDF="${_autoName}.$(uppercase $RESIZE_PAPER_TYPE).SCALED.pdf"
isEmpty "$_tgtFile" && OUTFILEPDF="${_autoName}.$(uppercase $RESIZE_PAPER_TYPE).SCALED$_exSuffix.pdf"
elif isResizeMode; then
isEmpty "$_tgtFile" && OUTFILEPDF="${_autoName}.$(uppercase $RESIZE_PAPER_TYPE).pdf"
isEmpty "$_tgtFile" && OUTFILEPDF="${_autoName}.$(uppercase $RESIZE_PAPER_TYPE)$_exSuffix.pdf"
else
isEmpty "$_tgtFile" && OUTFILEPDF="${_autoName}.SCALED.pdf"
isEmpty "$_tgtFile" && OUTFILEPDF="${_autoName}.SCALED$_exSuffix.pdf"
fi
isNotEmpty "$_tgtFile" && OUTFILEPDF="${_tgtFile%.pdf}.pdf"
isNotEmpty "$_tgtFile" && OUTFILEPDF="${_tgtFile%.pdf}$_exSuffix.pdf"
validateOutFile
}

Expand Down Expand Up @@ -1056,32 +1064,32 @@ parseMode() {
local param="$(lowercase $1)"
case "${param}" in
c|catgrep|'cat+grep'|grep|g)
ADAPTIVEMODE=$FALSE
ADAPTIVE_MODE=$FALSE
MODE="CATGREP"
return $TRUE
;;
i|imagemagick|identify)
ADAPTIVEMODE=$FALSE
ADAPTIVE_MODE=$FALSE
MODE="IDENTIFY"
return $TRUE
;;
m|mdls|quartz|mac)
ADAPTIVEMODE=$FALSE
ADAPTIVE_MODE=$FALSE
MODE="MDLS"
return $TRUE
;;
p|pdfinfo)
ADAPTIVEMODE=$FALSE
ADAPTIVE_MODE=$FALSE
MODE="PDFINFO"
return $TRUE
;;
s|gs|ghostscript|ps|postscript)
ADAPTIVEMODE=$FALSE
ADAPTIVE_MODE=$FALSE
MODE="GS"
return $TRUE
;;
a|auto|automatic|adaptive)
ADAPTIVEMODE=$TRUE
ADAPTIVE_MODE=$TRUE
MODE=""
return $TRUE
;;
Expand Down Expand Up @@ -2014,7 +2022,7 @@ isMixedMode() {

# Return $TRUE if adaptive mode is enabled, $FALSE otherwise
isAdaptiveMode() {
return $ADAPTIVEMODE
return $ADAPTIVE_MODE
}

# Return $TRUE if adaptive mode is disabled, $FALSE otherwise
Expand All @@ -2023,6 +2031,29 @@ isNotAdaptiveMode() {
return $TRUE
}

# Return $TRUE if explode mode is enabled, $FALSE otherwise
isExplodeMode() {
return $EXPLODE_MODE
}

# Return $TRUE if explode mode is disabled, $FALSE otherwise
isNotExplodeMode() {
isExplodeMode && return $FALSE
return $TRUE
}

# Return $TRUE if we should just print PDF info, $FALSE otherwise
isJustIdentify() {
return $JUST_IDENTIFY
}

# Return $TRUE if we are not just printing PDF info, $FALSE otherwise
isNotJustIdentify() {
isJustIdentify && return $FALSE
return $TRUE
}



########################## VALIDATORS ##########################

Expand Down Expand Up @@ -2123,7 +2154,11 @@ isNotDir() {

# Returns 0 if succeded, other integer otherwise
isTouchable() {
touch "$1" 2>/dev/null
if touch "$1" 2>/dev/null; then
rm "$1" 2>/dev/null
return $EXIT_SUCCESS
fi
RETURN $EXIT_ERROR
}

# Returns $TRUE if $1 has a .pdf extension, false otherwsie
Expand Down Expand Up @@ -2266,6 +2301,7 @@ Parameters:
-n, --no-overwrite
Aborts execution if the output PDF file already exists
By default, the output file will be overwritten
Does NOT work if using --explode
-m, --mode <mode>
Paper size detection mode
Modes: a, adaptive Default mode, tries all the methods below
Expand All @@ -2276,6 +2312,8 @@ Parameters:
s, gs Forces the use of Ghostscript (PS script)
-i, --info <file>
Prints <file> Paper Size information to screen and exits
-e, --explode
Explode (split) outuput PDF into many files (one per page)
-s, --scale <factor>
Changes the scaling factor or forces mixed mode
Defaults: $SCALE (scale mode) / Disabled (resize mode)
Expand Down

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