Last update at ：2024-02-01，Edit by888u
PDF is a file format that presents documents in a way that is independent of hardware, applications, and operating systems. Because it can ensure accurate colors and accurate printing effects on the printer, and can also effectively protect the original information of text, graphics, and glyphs, the PDF format is very popular in important occasions such as graduation thesis, contract, and PPT. Despite this, the reversibility of PDF files is very poor - it may be easy to convert Word, PPT, Markdown and other formats to PDF, but it will be a lot more troublesome to restore PDF to Word, PPT, Markdown and other formats.
In order to solve the problem of converting PDF file formats, many PDF converters have appeared on the market. But among many PDF converters, most of these functions require charges. Recently, the developer of a 12-year-old domestic PDF tool "PDF Patch" suddenly announced that the software will be open source and has released the source code on GitHub.
According to the official blog, "PDF Patch" is a permanently free multi-functional PDF toolbox that can modify PDF information, PDF bookmark editor, generate PDF bookmarks, create PDF files, split or merge PDF files, Export images in PDF files, replace fonts and other functions.
According to extension fans, "PDF Patch" has a built-in powerful PDF bookmark editor, which not only has a right-to-left reading interface, but also can automatically generate bookmarks that can be accurately positioned in the middle of the page, and can also bookmark PDFs. Properties can be modified in batches.
In addition, it can extract images ultra-fast and losslessly, merge images and PDF documents, unify page sizes, and clear document printing and copying restrictions. Moreover, "PDF Patch" also supports calling Microsoft Office's image recognition engine to analyze text in PDF document images. It can also analyze the structure of the document and replace fonts in the document. In addition to the functions mentioned above, "PDF Patch" also has many practical and powerful functions that are very popular among users.
More importantly, "PDF Patch" has a long-term free policy, which is safe, green and non-intrusive. It has no ads and no redundant dialog boxes. Its developers suddenly announced that they would open source the software, which was not unexpected. In fact, after the release of version 0.6.2 in July 2019, the developers never updated the "PDF Patch".
However, after two years, the developers continued to update and maintain it in August 2021, and launched version 1.0 at the end of December 2021. Until now, the developer has officially announced that it will be open source, saying that it hopes that interested people can use these codes - whether they plan to charge or free - to make tools that benefit the world.
In addition, according to the developer's description, the "PDF Patch" software and source code adopt a "conscience authorization" agreement: every time the user benefits from using this software, he should do a good deed; if he uses the source code to develop If you purchase new software and obtain profits, no less than one thousandth of the proceeds should be donated to disadvantaged groups in society.
PDF Patch Github address: https://github.com/wmjordan/PDFPatcher
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