Perhaps the greatest romance of programmers is to commemorate their dead mother with a software

This software is called pdf Mending , Its authors use it online wmjordan The name ,
2009 The author began to pdf Development of patch D , It has been thirteen years now .
pdf Patch D is a very useful pdf Tools , Can support merging pictures and documents , from pdf Extract pictures from , There is also a powerful bookmark editing function .
The most important thing is that it is green and free without advertising . There is only one author defined in the software “ Authorization way ”.

2021 year 11 month , The author's mother died of illness .

The author accompanies his mother

The author published a blog , It records the last time with my mother , And right pdf Some ideas of patch Ding .

The author says ： Mother has been a Bodhisattva all her life , For the good of others , It's a pity that I went to the West so early . He wants me to do more good , Benefit others . I've been thinking for a month pdf Patch d this software has been free for everyone to use , During this period, some friends occasionally hope to open the source code . Maybe it's time to make some adjustments .

After a few days , The author will pdf Patch D's code is open source , And it uses a very special protocol .

In the license agreement, the author writes ：

Every user who uses this software , If this software helps you , Every time you use this software, you must do 1 A good deed . Good deeds are of no size , If you have a heart, you can . for example ：

1. If your parents are around , You can cook a delicious meal for your parents , Or give them a massage 、 wash one 's feet ; If they are far away , You can make a call to them , Greeting their health and life .
2. When it rains heavily , If you have an umbrella , Can be shared with fellow travelers ; In the scorching sun , If you see sanitation workers working in the sun , You can buy a bottle of water for them ; On crowded public transport , Or waiting in line in public , If you have a seat , You can give it to the old man 、 Pregnant women or people carrying heavy objects sit .
3. You can use the skills you are good at , Help the people around you ; You can put your knowledge , Share with others , Let them benefit ; You can donate money and things to people who are more difficult than you .
4. If you think this software is really easy to use , Please introduce its usage to others , Let others benefit from using this software ; Or introduce other software that you think is easy to use to others .
   If you can't do it after using this software 1 A good deed , Please keep it in mind . When there is a chance , Do more good and accumulate virtue . Compliance with this user agreement , It's all in your conscience . Is for “ Conscience authorization ”.

After reading these paragraphs , I think there is no need to explain anything to explain the author's inner thoughts .

A little personal thought ：

The development of software is inseparable from open source , Open source makes a lot of software 、 Also made a lot of programmers , But with development , Open source seems to be a kind of Whoring for nothing The way , It often happens that enterprises take open source products for commercial use without authorization and urge authors to update them .
I think open source is a kind of spirit , It is a way of sharing, learning and communicating with each other , But with now on ‘ Open source ’ Abuse , As a result, many open source authors are under great pressure , Some authors even give up open source .

Of course, many authors continue to practice the spirit of open source , When it was open source, it attached some of its own licensing agreements . and pdf Patch Ding's open source agreement is intended to commemorate his mother , At the same time, it has also contributed to some of the love of the society . Look at pdf Patch Ding's open source agreement and think about yourself , What the author hopes is not what we lack , Whether it's for your parents , To every worker on the street or to the people around him , It seems that we are too selfish 了 , I think whether I use this software or not , We should all live up to this agreement , Make up for your willfulness towards your parents , The neglect of the workers on the street and the selfishness of the people around them .

Wrote some personal thoughts , There may be something wrong , But thank you for seeing here , May all the warmth in the world not be let down , Let's encourage each other .

attach ：
pdf Patch Ding author blog address ：https://www.cnblogs.com/pdfpatcher/

Please refer to the official account article if the picture is invalid ：https://mp.weixin.qq.com/s/lMnf297JIZojpx3NRI826g