STEP 1
Run PDF Super Toolkit, click on Manage Attachments.
STEP 2
Click on Browse button at the top of the window to choose PDF file from your machine.
STEP 3
User cant extract or remove existing attachment, add new attachment, there will be a asterisk in the New column for added attachment.
STEP 4
Click on Browse button at the bottom of the window to select destination path to save output PDF file.
STEP 5
Click on Process button to save modified document to output PDF file. A message Successfully process attachments will be displayed after processing, press Yes to open the output PDF file with system default PDF viewer.