If you want to remove some pages from the document, all you need to do is click “Delete Page” on the thumbnail seen in the preview. This tool only supports one file at a time To upload files from Dropbox, Google Drive or from a website where your files are located, expand the drop-down list and select your files.
To upload your files from your computer, click “Upload PDF File” and select the files you want to delete pages from or drag and drop the files to the page.
The files will be permanently deleted after processing. You can be assured that your files are safely uploaded over an encrypted connection.