如何将 PDDocument 转换为 Java 中的 Base64 字符串？

Question

How to convert PDDocument (the pdf document contains words and images, if it is possible) to Base64 String? Is there any suggestion of code. Please.

Answer 1

The answer assumes that you are using jdk8 or higher, if not, please see here .

import java.util.Base64;

...

ByteArrayOutputStream baos = new ByteArrayOutputStream();
doc.save(baos);
String base64String = Base64.getEncoder().encodeToString(baos.toByteArray());
doc.close(); // don't forget to close your document