We recommend several free PDF to Word File converters.

Many sap textbooks, including standard textbooks and PA textbooks, are in PDF format. They are optimistic but difficult to edit. I like graffiti and translation, so I usually convert it to Word Format first. I have changed a lot of software, and none of them have a good effect. Most of them are added with millions of text boxes to locate text and paragraphs, and the pictures are severely distorted. Recently, look has done a few more perfect jobs, but they are online and not offline, but they are quite satisfied.

Http://www.pdftoword.com/
This is the most accurate PDF to Word file converter in the world. You can upload PDF files online and transfer the converted files to your mailbox.
Advantages: the effect is quite good. The converted Word format is almost the same as the PDF file. The text and the Image Location and page number are almost the same. Of course, you can also pick something wrong, compare and process all the footer headers into the body.
Disadvantage: The speed depends on the speed at which your mailbox receives emails. Sometimes it takes several minutes or even one or two hours to receive emails. No offline version is available.

Http://www.pdfonline.com/pdf2word/index.asp
PDF files can be uploaded online, converted to Word files immediately, and downloaded directly
Advantage: the results are quite good and can be downloaded right away, achieving fast speeds
Disadvantages: there are basically no problems to pick; offline version charges

Http://convertpdftoword.net/Default.aspx
Convertpdftoword is also a free conversion tool for PDF to doc files. It allows you to upload PDF files online and immediately convert them to Word files for direct download, which is very convenient!
Advantage: the effect is slightly better than that of the offline version.
Disadvantage: the layout is still neat, but too many text boxes are added to locate the text, which increases the workload of re-editing; no offline version

In addition, CHM help files are often used for word conversion during learning. I use chm2word v3.0.0915 to achieve very good results. There are also HLP help files for word conversion. I have used a lot of software, such as windowshlptortf, however, there is no ideal effect so far. The main reason is that images cannot be embedded in Word files, but are separated. In the past, a foreign image was found to have a good effect, but the charges are limited, it does not support Chinese characters. If you have a good HLP to Word file converter, I hope you can provide it to me.