如何在Java中将itext pdf文件的段落设置为带有背景色的矩形 [英]How to set the paragraph of itext pdf file as rectangle with background color in Java
如何从PDF文件中删除所有图像/图形,而只保留Java中的文本? [英]How can I remove all images/drawings from a PDF file and leave text only in Java?
如何从我的代码java中的文件中计算每个段落中的单词数? [英]how can I count number of words from each paragraph from the file in my code java?