How to Choose the Right File Format for Scanning Documents
The right scan format depends on what happens to the file next - not every scan should default to the same format.
The right format for a scanned document depends less on habit and more on what you're actually going to do with the file afterward - a single receipt and a twelve-page contract have genuinely different format needs.
When PDF is the right choice
- Any multi-page document - PDF handles multiple pages as one file naturally, where a single image format can't
- Anything you'll archive, email as one attachment, or need to reference as a single document later
- A document you might eventually want to make searchable with OCR
When a plain image format makes more sense
- A single-page scan you're inserting directly into another document or presentation
- A scan you plan to crop, rotate, or otherwise edit as an image before finalizing it
- Something you're just quickly sharing as a picture, not archiving as a document
Turning multiple scanned images into one document
If you've already scanned pages as separate image files and want them as one document, combine them into a PDF - much easier than trying to manage several separate image files as if they were one document.
Frequently asked questions
Is PDF always the best choice for a scanned document?
For anything with more than one page, or anything you'll want to search, share, or archive as a single file, yes - PDF handles multi-page documents naturally in a way a single image format can't.
When would JPG or PNG make more sense than PDF for a scan?
For a single-page scan you plan to insert into another document, or edit as an image (crop, annotate visually), a plain image format can be simpler to work with than a PDF.
Does the scan format affect whether the document can later be made searchable?
Not directly - the scan itself is an image regardless of whether it's saved as a standalone JPG or wrapped in a PDF. OCR is a separate step needed either way to make the content searchable.