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pdf-unstamper


Remove textual watermark of any font, any encoding and any language with pdf-unstamper now!

Disclaimer

This software(pdf-unstamper.jar) is ONLY for technical exchange and CANNOT be held responsible for any consequences caused by pdf modification.

Effect

Before After

Manual

Run the tool without argument will show the following.

Usage:
   [OPTION] -i [INPUT PDF] -k [KEYWORDS...] (-o [OUTPUT PDF])
   [OPTION] -I [INPUT DIR] -k [KEYWORDS...] (-O [OUTPUT DIR])

Options:
   -d,  --direct            directly modify the input file(s), option o/O is
                            unnecessary when this option is on
   -r,  --recursive         process files in the given dir recursively
   -s,  --strict            use strict mode, a text area is considered as watermark
                            only if its content strictly equals one of the keywords
   -c,  --clear             clear all annotations in pages which contains the target
                            textual watermark(s), if you encounter bordered frame issues,
                            enable this switch

Get it now

As a command

Install (or update to) the latest version as command unstamp in ~/bin/ and soft-linked as /usr/local/bin/unstamp for convenience.

Install

Make sure you have wget installed.

➜ sudo bash -c "$(curl -s https://raw.githubusercontent.com/hwding/pdf-unstamper/master/script/install)"

# If using a proxy
➜ sudo proxychains bash -c "$(curl -s https://raw.githubusercontent.com/hwding/pdf-unstamper/master/script/install)"

# Script options
#
# -d [DIR]  install binary into a specified directory
# -w        install without creating a soft-link to /usr/local/bin/

# If install with options, download the script first
➜ wget https://raw.githubusercontent.com/hwding/pdf-unstamper/master/script/install

# Then execute with or without proxy
➜ sudo bash install -d ~/my-bins/
➜ sudo bash install -w
➜ sudo bash install -d ~/my-bins/ -w
➜ sudo proxychains bash install -d ~/my-bins/
➜ sudo proxychains bash install -w
➜ sudo proxychains bash install -d ~/my-bins/ -w

Run

# For single file processing
➜ unstamp -i "C Recipes.pdf" -o "C Recipes.unstamped.pdf" -k www.allitebooks.com -s -c
➜ unstamp -i RoR.pdf -o RoR.unstamped.pdf -k 图灵社区会员
# Or
➜ unstamp -i "C Recipes.pdf" -d -k www.allitebooks.com -s -c
➜ unstamp -i RoR.pdf -d -k 图灵社区会员
 
# For massive files processing
➜ unstamp -I pdfs/ -O unstampedPdfs/ -r -k 图灵社区会员 www.allitebooks.com -c
# Or
➜ unstamp -I pdfs/ -d -r -k 图灵社区会员 www.allitebooks.com -c

As a JAR

Download

Get pdf-unstamper.jar.

Run

# For single file processing
➜ java -jar pdf-unstamper.jar -i "C Recipes.pdf" -o "C Recipes.unstamped.pdf" -k www.allitebooks.com -s -c
➜ java -jar pdf-unstamper.jar -i RoR.pdf -o RoR.unstamped.pdf -k 图灵社区会员
# Or
➜ java -jar pdf-unstamper.jar -i "C Recipes.pdf" -d -k www.allitebooks.com -s -c
➜ java -jar pdf-unstamper.jar -i RoR.pdf -d -k 图灵社区会员
 
# For massive files processing
➜ java -jar pdf-unstamper.jar -I pdfs/ -O unstampedPdfs/ -r -k 图灵社区会员 www.allitebooks.com -c
# Or
➜ java -jar pdf-unstamper.jar -I pdfs/ -d -r -k 图灵社区会员 www.allitebooks.com -c