hwding / pdf-unstamper

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

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

pdf-unstamper's Issues

Not removing Border/Link

Hi,

Thanks for the script. The Java version I tested is not removing the border and the link from allitebooks pdfs.

Thanks

[Bug / Performace / Enhancement ] NullPointerException on many files

Exception in thread "main" java.lang.NullPointerException
	at java.base/java.util.ArrayDeque.addLast(ArrayDeque.java:303)
	at java.base/java.util.ArrayDeque.add(ArrayDeque.java:494)
	at org.apache.pdfbox.pdmodel.PDPageTree$PageIterator.enqueueKids(PDPageTree.java:174)
	at org.apache.pdfbox.pdmodel.PDPageTree$PageIterator.enqueueKids(PDPageTree.java:169)
	at org.apache.pdfbox.pdmodel.PDPageTree$PageIterator.enqueueKids(PDPageTree.java:169)
	at org.apache.pdfbox.pdmodel.PDPageTree$PageIterator.<init>(PDPageTree.java:159)
	at org.apache.pdfbox.pdmodel.PDPageTree$PageIterator.<init>(PDPageTree.java:153)
	at org.apache.pdfbox.pdmodel.PDPageTree.iterator(PDPageTree.java:123)
	at java.base/java.lang.Iterable.forEach(Iterable.java:74)
	at com.amastigote.unstamper.core.Processor.process(Processor.java:59)
	at com.amastigote.unstamper.util.TaskRunner.submitToProcessor(TaskRunner.java:53)
	at com.amastigote.unstamper.util.TaskRunner.procSingleFile(TaskRunner.java:44)
	at com.amastigote.unstamper.Main.main(Main.java:54)

[Enhancement] 支持倾斜的水印

Describe the issue
在我的设备上，此程序可以处理横体排列的水印。
希望进一步支持对倾斜水印的删除。

Version
0.2.5/pdf-unstamper.jar

Arguments

java -jar pdf-unstamper.jar -i [A.pdf] -o [A.unstamped.pdf] -k [slanted watermark content]
## OR
java -jar pdf-unstamper.jar -i [A.pdf] -o [A.unstamped.pdf] -k [slanted watermark content] -c -s

where is the Doc?

I need a Doc for the jar

cnki下载的文献下面的水印是否可以删除

万方、维普数据库下载的文献就没有水印

Search whole sentence instead of per word

The problem i have is when the water mark has a common word like "TO BE".

With current software, doing

"pdf-unstamper -i in.pdf -k TO BE -o out.pdf"

Will remove all the content with "TO BE" in it.
While using strict mode will not remove my watermark.

It would be nice if i can do

Pdf-unstaper -i in.pdf -k 'TO BE' -o out.pdf

That only remove combination of 'TO' and 'BE' instead of individual word. Since that can remove content of the pdf.

Thank you

[Enhancement ] remove text in special area only?

Describe the issue
Is there possible to remove the text only in a particular area?

If the top-left is the start point, it may look like this:

(width_start_percent, height_start_percent, width_end_percent, height_end_percent)

Maybe the given area is like this, (10, 20, 20, 40)

Version
0.2.5

Arguments
Options you used to run the unstamper.

Expected behavior
A brief description of what you expected to happen.

Original file(s)
Provide original file(s) if possible.

[Bug / Performace / Enhancement ] Brief description here

nothing working

[Bug] 去除的字符含有空格，貌似会误删很多文字

比如这个 “Download from Wow! eBook <www.wowebook.com>”

http://download.library1.org/main/833000/4fd7f0dd7f5eddb192ed97af0c4eb445/Peter%20Harrington%20-%20Machine%20Learning%20in%20Action-Manning%20Publications%20%282012%29.pdf

I have a good idea

Since it can be removed part of the logo, can be added to the logo!

This pdf can not remove.

https://www.dropbox.com/s/dl/7vm0o0neefowljt/test_watermark.pdf
"iLovePDF" text do not remove.
This file just has created from PDF tool site with text-type waterrmark.

使用没效果

您好，我使用了你的jar包，但是执行之后没有去除文字，麻烦帮看下~

works, but file size much bigger than the original one

why is that??

图灵社区的水印无法去除

Describe the issue
图灵社区会员 …… 水印无法去除

Version
0.2.5

Arguments

java -jar pdf-unstamper.jar -i 程序是怎样跑起来的.pdf -d -k 图灵社区会员

Expected behavior
理想情况是页脚位置上的水印全部去除

Original file(s)
https://www.aliyundrive.com/s/9TqePXtPEZZ

cannot open PDF file

C:>java -jar pdf-unstamper.jar -i 111.PDF -d -k "更多电子书资料请搜索「书行天下」：http://www.sxpdf.com" -s -c
[Processor] Processing PDF file '111.PDF' ...
[Processor] Error loading file '111.PDF' as PDF, skipping

[Enhancement] PDF contains an encryption dictionary, please remove it with setAllSecurityToBeRemoved() ...

Describe the issue

Version
0.2.3

Arguments
java -jar pdf-unstamper.jar -c -i '风吹江南之互联网金融_陈宇.pdf' -k '更多资料请关注我的网易博客http://ntccy2009.blog.163.com/'

Expected behavior
A brief description of what you expected to happen.

Original file(s)

original file download link: https://pan.baidu.com/s/15qH_ahkDTKnn8rYTE1UpjA

[Bug / Performace / Enhancement ] 无法移除水印

使用以下命令无法移除pdf中的水印，麻烦看下是什么原因。。
java -jar pdf-unstamper.jar -i "2019 CFA Curriculum Level II Volume 2_1.pdf" -o "C volume 2-unstamped.pdf" -k 微信 -c

文件的百度网盘链解：https://pan.baidu.com/s/1KzRI6HhoTIoguKlQib5umQ
提取码: rpcp