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v2.2.0 - Added many new options. --pdf-settings, --image-downsample, --image-resolution, --horizontal-alignment, --vertical-alignment, --xtrans-offset, --ytras-offset and also a few tweaks to readme and helpinfo. Help seems a bit slow though. This version address a few of the open issues on github.

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Gustavo Arnosti Neves 7 anni fa
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2 ha cambiato i file con 271 aggiunte e 36 eliminazioni
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  1. +51
    -22
      README.md
  2. +220
    -14
      pdfScale.sh

+ 51
- 22
README.md Vedi File

@@ -1,7 +1,7 @@
# pdfScale 2
Bash Script to ***scale*** and/or ***resize*** PDFs from the command line.
Uses ghostscript (`gs`) to create a scaled and/or resized version of the pdf input.
In `scaling mode`, the PDF paper size does not change, just the elements are scaled.
In `resize mode`, the PDF paper will be changed and fit-to-page will be applied.
In `mixed mode`, the PDF will first be `resized` then `scaled` with two Ghostscript calls.
@@ -108,8 +108,8 @@ $ pdfscale -v -v -r 'custom mm 200 300' -f disable -s 0.95 ../mixsync\ manual\ v

## Help info
```
$ pdfscale -h
pdfscale v2.1.2
$ pdfscale --help
pdfscale v2.2.0

Usage: pdfscale <inFile.pdf>
pdfscale -i <inFile.pdf>
@@ -123,7 +123,7 @@ Parameters:
-v, --verbose
Verbose mode, prints extra information
Use twice for timestamp
-h, --help
-h, --help
Print this help to screen and exits
-V, --version
Prints version to screen and exits
@@ -131,7 +131,7 @@ Parameters:
Aborts execution if the output PDF file already exists
By default, the output file will be overwritten
-m, --mode <mode>
Paper size detection mode
Paper size detection mode
Modes: a, adaptive Default mode, tries all the methods below
g, grep Forces the use of Grep method
m, mdls Forces the use of MacOS Quartz mdls
@@ -153,7 +153,7 @@ Parameters:
Inverts Width <-> Height of a Resized PDF
Modes: a, auto Keeps source orientation, default
f, force Forces flip W <-> H
d, disable Disables flipping
d, disable Disables flipping
-a, --auto-rotate <mode>
Setting for GS -dAutoRotatePages, defaults to 'PageByPage'
Uses text-orientation detection to set Portrait/Landscape
@@ -161,6 +161,33 @@ Parameters:
n, none Retains orientation of each page
a, all Rotates all pages (or none) depending
on a kind of "majority decision"
--hor-align,--horizontal-alignment <left|center|right>
Where to translate the scaled page
Default: center
Options: left, right, center
--vert-align,--vertical-alignment <top|center|bottom>
Where to translate the scaled page
Default: center
Options: top, bootom, center
--xoffset,--xtrans-offset <FloatNumber>
Add/Subtract from the X translation (move left-right)
Default: 0.0 (zero)
Options: Positive or negative floating point number
--yoffset,--ytrans-offset <FloatNumber>
Add/Subtract from the Y translation (move top-bottim)
Default: 0.0 (zero)
Options: Positive or negative floating point number
--pdf-settings <gs-pdf-profile>
Ghostscript PDF Profile to use in -dPDFSETTINGS
Default: printer
Options: screen, ebook, printer, prepress, default
--image-downsample <gs-downsample-method>
Ghostscript Image Downsample Method
Default: bicubic
Options: subsample, average, bicubic
--image-resolution <dpi>
Resolution in DPI of color and grayscale images in output
Default: 300
-p, --print-papers
Prints Standard Paper info tables to screen and exits

@@ -169,7 +196,9 @@ Scaling Mode:
size and scaling pre-set to 0.95
- By not using the resize mode you are using scaling mode
- Flip-Detection and Auto-Rotation are disabled in Scaling mode,
you can use '-r source -s <scale>' to override.
you can use '-r source -s <scale>' to override.
- Ghostscript placement is from bottom-left position. This means that
a bottom-left placement has ZERO for both X and Y translations.

Resize Paper Mode:
- Disables the default scaling factor! (0.95)
@@ -190,22 +219,22 @@ Output filename:
.<PAPERSIZE>.SCALED.pdf is added in mixed mode

Standard Paper Names: (case-insensitive)
A0 A1 A2 A3 A4
A4SMALL A5 A6 A7 A8
A9 A10 ISOB0 ISOB1 ISOB2
ISOB3 ISOB4 ISOB5 ISOB6 C0
C1 C2 C3 C4 C5
C6 11X17 LEDGER LEGAL LETTER
LETTERSMALL ARCHE ARCHD ARCHC ARCHB
ARCHA JISB0 JISB1 JISB2 JISB3
JISB4 JISB5 JISB6 FLSA FLSE
HALFLETTER HAGAKI
A0 A1 A2 A3 A4
A4SMALL A5 A6 A7 A8
A9 A10 ISOB0 ISOB1 ISOB2
ISOB3 ISOB4 ISOB5 ISOB6 C0
C1 C2 C3 C4 C5
C6 11X17 LEDGER LEGAL LETTER
LETTERSMALL ARCHE ARCHD ARCHC ARCHB
ARCHA JISB0 JISB1 JISB2 JISB3
JISB4 JISB5 JISB6 FLSA FLSE
HALFLETTER HAGAKI

Custom Paper Size:
- Paper size can be set manually in Milimeters, Inches or Points
- Custom paper definition MUST be quoted into a single parameter
- Actual size is applied in points (mms and inches are transformed)
- Measurements: mm, mms, milimeters
- Measurements: mm, mms, milimeters
pt, pts, points
in, inch, inches
Use: pdfscale -r 'custom <measurement> <width> <height>'
@@ -353,13 +382,13 @@ It will try the following methods in sequence:
3. Failed ? Try `pdfinfo`
4. Failed ? Try ImageMagick's `identify`
5. Failed ? `Exit` with error message
The `grep` method will fail on PDFs without a `/MediaBox`.
You may install any of the optionals to be used in that case.
MacOS is fine using `mdls` if the metadata of the file is accurate.
The metadata is generated automatically by the OS (Spotlight)
##### apt-get
```
sudo apt-get install imagemagick pdfinfo
@@ -382,7 +411,7 @@ cd ./pdfScale

## System Install
The installer will name the executable as `pdfscale` with no uppercase chars and without the `.sh` extension.
If you have `make` installed you can use it to install to `/usr/local/bin/pdfscale` with:
```
sudo make install


+ 220
- 14
pdfScale.sh Vedi File

@@ -5,14 +5,14 @@
# Scale PDF to specified percentage of original size.
#
# Gustavo Arnosti Neves - 2016 / 07 / 10
# Latest Version - 2017 / 05 / 19
# Latest Version - 2018 / 04 / 01
#
# This script: https://github.com/tavinus/pdfScale
# Based on: http://ma.juii.net/blog/scale-page-content-of-pdf-files
# And: https://gist.github.com/MichaelJCole/86e4968dbfc13256228a


VERSION="2.1.3"
VERSION="2.2.0"


###################### EXTERNAL PROGRAMS #######################
@@ -59,8 +59,31 @@ PGWIDTH="" # Input PDF Page Width
PGHEIGHT="" # Input PDF Page Height
RESIZE_WIDTH="" # Resized PDF Page Width
RESIZE_HEIGHT="" # Resized PDF Page Height
IMAGE_RESOLUTION=300 # Image resolution (dpi) (300 is /Printer default)

############################# Image resolution (dpi)
IMAGE_RESOLUTION=300 # 300 is /Printer default

############################# Image compression setting
# default screen ebook printer prepress
# ColorImageDownsampleType /Subsample /Average /Bicubic /Bicubic /Bicubic
IMAGE_DOWNSAMPLE_TYPE='/Bicubic'

############################# default PDF profile
# /screen /ebook /printer /prepress /default
# -dPDFSETTINGS=/screen (screen-view-only quality, 72 dpi images)
# -dPDFSETTINGS=/ebook (low quality, 150 dpi images)
# -dPDFSETTINGS=/printer (high quality, 300 dpi images)
# -dPDFSETTINGS=/prepress (high quality, color preserving, 300 dpi imgs)
# -dPDFSETTINGS=/default (almost identical to /screen)
PDF_SETTINGS='/printer'

############################# default Scaling alignment
VERT_ALIGN="CENTER"
HOR_ALIGN="CENTER"

############################# Translation Offset to apply
XTRANSOFFSET=0.0
YTRANSOFFSET=0.0

########################## EXIT FLAGS ##########################

@@ -172,11 +195,29 @@ printPDFSizes() {

# Runs the ghostscript scaling script
pageScale() {
# Compute translation factors (to center page).
XTRANS=$(echo "scale=6; 0.5*(1.0-$SCALE)/$SCALE*$PGWIDTH" | "$BCBIN")
YTRANS=$(echo "scale=6; 0.5*(1.0-$SCALE)/$SCALE*$PGHEIGHT" | "$BCBIN")
vprint " Translation X: $XTRANS"
vprint " Translation Y: $YTRANS"
# Compute translation factors to position pages
CENTERXTRANS=$(echo "scale=6; 0.5*(1.0-$SCALE)/$SCALE*$PGWIDTH" | "$BCBIN")
CENTERYTRANS=$(echo "scale=6; 0.5*(1.0-$SCALE)/$SCALE*$PGHEIGHT" | "$BCBIN")
BXTRANS=$CENTERXTRANS
BYTRANS=$CENTERYTRANS
if [[ "$VERT_ALIGN" = "TOP" ]]; then
BYTRANS=$(echo "scale=6; 2*$CENTERYTRANS" | "$BCBIN")
elif [[ "$VERT_ALIGN" = "BOTTOM" ]]; then
BYTRANS=0
fi
if [[ "$HOR_ALIGN" = "LEFT" ]]; then
BXTRANS=0
elif [[ "$HOR_ALIGN" = "RIGHT" ]]; then
BXTRANS=$(echo "scale=6; 2*$CENTERXTRANS" | "$BCBIN")
fi
vprint " Vert-Align: $VERT_ALIGN"
vprint " Hor-Align: $HOR_ALIGN"

XTRANS=$(echo "scale=6; $BXTRANS + $XTRANSOFFSET" | "$BCBIN")
YTRANS=$(echo "scale=6; $BYTRANS + $YTRANSOFFSET" | "$BCBIN")

vprint "$(printf ' Translation X: %.2f = %.2f + %.2f (offset)' $XTRANS $BXTRANS $XTRANSOFFSET)"
vprint "$(printf ' Translation Y: %.2f = %.2f + %.2f (offset)' $YTRANS $BYTRANS $YTRANSOFFSET)"

local increase=$(echo "scale=0; (($SCALE - 1) * 100)/1" | "$BCBIN")
vprint " Run Scaling: $increase %"
@@ -190,8 +231,9 @@ gsPageScale() {
# Scale page
"$GSBIN" \
-q -dNOPAUSE -dBATCH -sDEVICE=pdfwrite -dSAFER \
-dCompatibilityLevel="1.5" -dPDFSETTINGS="/printer" \
-dCompatibilityLevel="1.5" -dPDFSETTINGS="$PDF_SETTINGS" \
-dColorImageResolution=$IMAGE_RESOLUTION -dGrayImageResolution=$IMAGE_RESOLUTION \
-dColorImageDownsampleType="$IMAGE_DOWNSAMPLE_TYPE" -dGrayImageDownsampleType="$IMAGE_DOWNSAMPLE_TYPE" \
-dColorConversionStrategy=/LeaveColorUnchanged \
-dSubsetFonts=true -dEmbedAllFonts=true \
-dDEVICEWIDTHPOINTS=$PGWIDTH -dDEVICEHEIGHTPOINTS=$PGHEIGHT \
@@ -219,8 +261,9 @@ gsPageResize() {
# Change page size
"$GSBIN" \
-q -dNOPAUSE -dBATCH -sDEVICE=pdfwrite -dSAFER \
-dCompatibilityLevel="1.5" -dPDFSETTINGS="/printer" \
-dCompatibilityLevel="1.5" -dPDFSETTINGS="$PDF_SETTINGS" \
-dColorImageResolution=$IMAGE_RESOLUTION -dGrayImageResolution=$IMAGE_RESOLUTION \
-dColorImageDownsampleType="$IMAGE_DOWNSAMPLE_TYPE" -dGrayImageDownsampleType="$IMAGE_DOWNSAMPLE_TYPE" \
-dColorConversionStrategy=/LeaveColorUnchanged \
-dSubsetFonts=true -dEmbedAllFonts=true \
-dDEVICEWIDTHPOINTS=$RESIZE_WIDTH -dDEVICEHEIGHTPOINTS=$RESIZE_HEIGHT \
@@ -387,11 +430,41 @@ getOptions() {
parseAutoRotationMode "$1"
shift
;;
--pdf-settings)
shift
parsePDFSettings "$1"
shift
;;
--image-downsample)
shift
parseImageDownSample "$1"
shift
;;
--image-resolution)
shift
parseImageResolution "$1"
shift
;;
--horizontal-alignment|--hor-align|--xalign|--x-align)
shift
parseHorizontalAlignment "$1"
shift
;;
--vertical-alignment|--ver-align|--vert-align|--yalign|--y-align)
shift
parseVerticalAlignment "$1"
shift
;;
--xtrans|--xtrans-offset|--xoffset)
shift
parseXTransOffset "$1"
shift
;;
--ytrans|--ytrans-offset|--yoffset)
shift
parseYTransOffset "$1"
shift
;;
*)
initError "Invalid Parameter: \"$1\"" $EXIT_INVALID_OPTION
;;
@@ -521,13 +594,13 @@ parseFlipDetectionMode() {
parseAutoRotationMode() {
local param="$(lowercase $1)"
case "${param}" in
n|none)
n|none|'/none')
AUTO_ROTATION='/None'
;;
a|all)
a|all|'/all')
AUTO_ROTATION='/All'
;;
p|pagebypage|auto)
p|pagebypage|'/pagebypage'|auto)
AUTO_ROTATION='/PageByPage'
;;
*)
@@ -568,7 +641,7 @@ parsePaperResize() {
fi
}

# Parses and validates the scaling factor
# Goes to GS -dColorImageResolution and -dGrayImageResolution parameters
parseImageResolution() {
if isNotAnInteger "$1"; then
printError "Invalid image resolution: $1"
@@ -578,6 +651,113 @@ parseImageResolution() {
IMAGE_RESOLUTION="$1"
}

# Goes to GS -dColorImageDownsampleType and -dGrayImageDownsampleType parameters
parseImageDownSample() {
local param="$(lowercase $1)"
case "${param}" in
s|subsample|'/subsample')
IMAGE_DOWNSAMPLE_TYPE='/Subsample'
;;
a|average|'/average')
IMAGE_DOWNSAMPLE_TYPE='/Average'
;;
b|bicubic|'/bicubic'|auto)
IMAGE_DOWNSAMPLE_TYPE='/Bicubic'
;;
*)
initError "Invalid Image Downsample Mode: \"$1\"" $EXIT_INVALID_OPTION
return $FALSE
;;
esac
}

# Goes to GS -dColorImageDownsampleType and -dGrayImageDownsampleType parameters
parsePDFSettings() {
local param="$(lowercase $1)"
case "${param}" in
s|screen|'/screen')
PDF_SETTINGS='/screen'
;;
e|ebook|'/ebook')
PDF_SETTINGS='/ebook'
;;
p|printer|'/printer'|auto)
PDF_SETTINGS='/printer'
;;
r|prepress|'/prepress')
PDF_SETTINGS='/prepress'
;;
d|default|'/default')
PDF_SETTINGS='/default'
;;
*)
initError "Invalid PDF Setting Profile: \"$1\""$'\nValid > printer, screen, ebook, prepress, default' $EXIT_INVALID_OPTION
return $FALSE
;;
esac
}

# How to position the resized pages (sets translation)
parseHorizontalAlignment() {
local param="$(lowercase $1)"
case "${param}" in
l|left)
HOR_ALIGN='LEFT'
;;
r|right)
HOR_ALIGN='RIGHT'
;;
c|center|middle)
HOR_ALIGN='CENTER'
;;
*)
initError "Invalid Horizontal Alignment Setting: \"$1\""$'\nValid > left, right, center' $EXIT_INVALID_OPTION
return $FALSE
;;
esac
}

# How to position the resized pages (sets translation)
parseVerticalAlignment() {
local param="$(lowercase $1)"
case "${param}" in
t|top)
VERT_ALIGN='TOP'
;;
b|bottom|bot)
VERT_ALIGN='BOTTOM'
;;
c|center|middle)
VERT_ALIGN='CENTER'
;;
*)
initError "Invalid Vertical Alignment Setting: \"$1\""$'\nValid > top, bottom, center' $EXIT_INVALID_OPTION
return $FALSE
;;
esac
}

# Set X Translation Offset
parseXTransOffset() {
if isFloat "$1"; then
XTRANSOFFSET="$1"
return $TRUE
fi
printError "Invalid X Translation Offset: $1"
printError "The X Translation Offset must be a floating point number"
exit $EXIT_INVALID_OPTION
}

# Set Y Translation Offset
parseYTransOffset() {
if isFloat "$1"; then
YTRANSOFFSET="$1"
return $TRUE
fi
printError "Invalid Y Translation Offset: $1"
printError "The Y Translation Offset must be a floating point number"
exit $EXIT_INVALID_OPTION
}

################### PDF PAGE SIZE DETECTION ####################

@@ -1314,6 +1494,30 @@ Parameters:
n, none Retains orientation of each page
a, all Rotates all pages (or none) depending
on a kind of \"majority decision\"
--hor-align,--horizontal-alignment <left|center|right>
Where to translate the scaled page
Default: center
Options: left, right, center
--vert-align,--vertical-alignment <top|center|bottom>
Where to translate the scaled page
Default: center
Options: top, bootom, center
--xoffset,--xtrans-offset <FloatNumber>
Add/Subtract from the X translation (move left-right)
Default: 0.0 (zero)
Options: Positive or negative floating point number
--yoffset,--ytrans-offset <FloatNumber>
Add/Subtract from the Y translation (move top-bottim)
Default: 0.0 (zero)
Options: Positive or negative floating point number
--pdf-settings <gs-pdf-profile>
Ghostscript PDF Profile to use in -dPDFSETTINGS
Default: printer
Options: screen, ebook, printer, prepress, default
--image-downsample <gs-downsample-method>
Ghostscript Image Downsample Method
Default: bicubic
Options: subsample, average, bicubic
--image-resolution <dpi>
Resolution in DPI of color and grayscale images in output
Default: 300
@@ -1326,6 +1530,8 @@ Scaling Mode:
- By not using the resize mode you are using scaling mode
- Flip-Detection and Auto-Rotation are disabled in Scaling mode,
you can use '-r source -s <scale>' to override.
- Ghostscript placement is from bottom-left position. This means that
a bottom-left placement has ZERO for both X and Y translations.

Resize Paper Mode:
- Disables the default scaling factor! ($SCALE)


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