package org.apache.pdfbox does not exist

Question

I have a problem with my java project, when extracting the pdf (package org.apache.pdfbox does not exist)

import org.apache.pdfbox.PDFReader
import org.apache.pdfbox.*;
import org.apache.pdfbox.cos.COSDocument;
import org.apache.pdfbox.pdmodel.PDDocument

I've replaced add fontbox and pdfbox 2.0.26.. but there are still some errors, and extracting the pdf can't work

enter image description here

Answer 1

enter image description here

problem solved,, I use java language,, I added pdfbox.app 2.0.26.jar and removed pdfbox and fontpdf 2.0.26.jar