If you have several scanned PDF documents that you want to merge or combine into a single PDF, you can do that via freeware or a few online tools.

When you scan a document into your system, OS X will create a single file of the scan and allow you to save it to the location of your choice. However, if you would like to combine scanned pages ...

Being able to combine PDF files is helpful in an office environment where various documents are collected, scanned and then collated into one document for clients or data history purposes. Merge ...

Different formats can also make managing several documents cumbersome. Combining these documents into a single PDF file may be helpful for personal or professional use, to deliver simplified, ...

If you want to try the same scan again, choose Retake. If you initiated the scan from the Browse screen of the Files app, you'll be asked to select a folder in which to save your scanned documents.

While scanning documents on Android devices is quick and easy, many users still go through the extra steps of manually converting these images into PDFs and uploading them to Google Drive.

Whether you're in school or running a business, being able to scan documents on the go can be extremely useful. Here are five apps that make it easy.