The fastest way: use your iPhone camera and AirDrop
If you have an iPhone or iPad nearby, the quickest path to a scanned document on your Mac is Apple's built-in Notes app. Open Notes on your iPhone, tap the camera icon at the bottom, select "Scan Documents," and photograph each page. The app straightens and crops automatically. When you finish, tap "Save," then open Notes on your Mac and the scan appears there — you can export it as a PDF by right-clicking the note and choosing "Export as PDF."
This method works because your devices sync through iCloud. You do not need to email files, plug in cables, or install anything. The trade-off is that the image quality depends on your iPhone camera and lighting, so it works best for text documents rather than photos or detailed artwork.
Key Takeaways
- Your Mac's built-in Preview app can scan from any connected scanner or multifunction printer without installing extra software.
- If you do not have a scanner, your iPhone camera plus Notes app gets documents onto your Mac in seconds through iCloud sync.
- Most scanners work with macOS automatically, but you may need to download drivers from the manufacturer's website if your Mac does not recognize it.
- Scanned PDFs on your Mac can be searched by text content if you use the OCR (optical character recognition) feature in Preview.
Scanning with a physical scanner using Preview
If you own a scanner or a printer with a scanning function, your Mac can talk to it without any extra software. Plug the scanner into your Mac with a USB cable or connect it to the same Wi-Fi network. Open Preview (it lives in Applications > Utilities), then go to File > Import from Scanner. Your scanner should appear in the dropdown menu.
Click the scanner name, then click "Scan." Preview shows you a preview of what it will capture. Adjust the resolution (300 dpi is standard for text, 600 dpi for photos), choose color or black-and-white, then click "Scan" again. When the scan finishes, Preview opens the image. Go to File > Export As, choose PDF format, name your file, and save it to your Documents folder or wherever you want it.
If your scanner does not appear in the dropdown, your Mac may need the scanner's driver software. Visit the manufacturer's website (Canon, HP, Epson, Brother, etc.), search for your scanner model, and download the macOS driver. Restart your Mac after installing, then try Preview again.
Scanning from a multifunction printer
Multifunction printers — the kind that print, copy, and scan — work the same way as standalone scanners in Preview. The printer must be connected to your Mac either by USB or by being on the same Wi-Fi network. Open Preview, go to File > Import from Scanner, and select your printer from the list.
Some HP, Canon, and Brother printers also come with their own scanning apps that you can download from the Mac App Store. These apps sometimes offer extra features like automatic document feeding or batch scanning, but Preview does the job for most people. If you already have the printer's app installed and it is not working, restart your Mac and try again — printer software sometimes needs a restart to recognize the device.
Making scanned text searchable with OCR
When you scan a document, your Mac stores it as an image — the text inside is just pixels, not actual words. If you want to search for text later or copy words from the scan, you need to run OCR (optical character recognition) on it. Preview can do this built-in, but only if you have macOS 10.15 or newer.
After you scan and save your PDF in Preview, open that PDF file in Preview again. Go to Tools > Recognize Text. Preview analyzes the image and converts the text to searchable, copyable words. This takes a minute or two depending on how many pages you have. When it finishes, you can search the PDF using Command+F or copy text by selecting it with your mouse.
If you have older macOS or need more powerful OCR, third-party apps like ABBYY FineReader or Prizmo can do the job, but they cost money. For most everyday documents, Preview's built-in OCR is enough.
Organizing and naming your scanned files
After you scan, your PDF sits on your Mac as a file. Give it a clear name so you can find it later — "2024 Tax Return" is better than "Scan 1." Use your Mac's Finder to move the file into a folder where you keep similar documents. Many people create a "Scans" folder in Documents, or organize by category like "Medical," "Financial," or "Receipts."
If you scan the same type of document regularly (receipts, invoices, contracts), create a folder for each type. This takes 30 seconds now and saves you 10 minutes of searching later. You can also use tags — right-click the file, choose "Tags," and add a color or label. Tags make it faster to find files across multiple folders.
Troubleshooting when your scanner will not show up
If Preview's "Import from Scanner" menu is empty or your scanner does not appear, start with the simplest fixes. Unplug the scanner, wait 10 seconds, and plug it back in. If it is wireless, make sure it is on the same Wi-Fi network as your Mac — check your printer's settings menu or app to confirm the network name. Restart your Mac.
If the scanner still does not appear, visit the manufacturer's website and download the latest macOS driver for your model. Install it, restart your Mac, and try Preview again. If you have an older scanner (more than 10 years old), the manufacturer may not make a driver for current macOS versions — in that case, your iPhone camera method or a third-party scanning app might be your only option.
For wireless printers that stopped working after a macOS update, go to System Settings > Printers & Scanners, find your printer, and click the minus button to remove it. Then click the plus button, search for your printer by name, and add it back. This forces your Mac to re-recognize it.
Frequently Asked Questions
Can I scan directly to email or cloud storage like Google Drive?
Preview saves to your Mac first, but you can then drag the PDF into Google Drive, Dropbox, or OneDrive in Finder. Some printer manufacturers' apps (Canon, HP) have built-in cloud upload, so check your printer's app if it came with one. For most people, scanning to your Mac and moving the file afterward is simpler.
What resolution should I use when scanning?
Use 300 dpi for text documents and bills. Use 600 dpi for photos or detailed images. Higher numbers make bigger files without much visible difference. Lower than 300 dpi makes text blurry and hard to read later.
Why is my scanned PDF so large?
Color scans are much larger than black-and-white. If you are scanning text, choose black-and-white in Preview's scanner settings — it cuts the file size by half or more. You can also compress the PDF afterward by opening it in Preview, going to File > Export, and lowering the Quartz filter quality.
Can I scan multiple pages into one PDF?
Yes. In Preview, after you scan the first page, go to File > Import from Scanner again and scan the next page. Preview adds it to the same document. Repeat for each page, then save as one PDF. Some scanner apps do this automatically if your scanner has an automatic document feeder.
What if I do not have a scanner or iPhone?
You can use your Android phone's camera and a free app like Microsoft Lens or Google Drive's built-in scan feature, then download the PDF to your Mac. You can also take the document to a library, UPS Store, or FedEx Office — most have scanners you can use for a small fee.