It was almost impossible to copy text from a picture in the past. However, now there is a professional PDF program that can help. Take SwifDoo PDF for example:
Step 1: Download SwifDoo PDF and install;
Step 2: Launch the program and drag the picture to the operation panel;
Step 3: Click Image to PDF under Convert;
Step 4: Once completed, open the new file;
Step 5: Click Recognize Document to make the current document editable.
However, this solution applies to images with less complicated formatting, such as forms.