The simplest way to get a PDF onto your Kindle

You can move a PDF to your Kindle in three ways: email it to your Kindle's email address, connect your Kindle to a computer and drag the file over, or convert the PDF first and then send it. The email method is fastest for most people because you do not need cables or software — you just attach the file and send it to an address Amazon gives you.

Your Kindle has its own email address that only accepts files from addresses you have approved. Amazon stores anything you send there in your library, and it appears on all your Kindle devices within minutes. This works for PDFs, Word documents, and several other formats, though PDFs sometimes display better than others depending on how they were made.

Key Takeaways

  • Every Kindle has a unique email address you can find in your Amazon account settings under Devices and Content, and you must approve the sender's email address first.
  • Emailing a PDF to your Kindle is free and the fastest method, though the file must be under 50 MB and the sender's email must be on your approved list.
  • If email does not work or you prefer not to use it, you can plug your Kindle into a computer with a USB cable and move the PDF file directly into the Documents folder.
  • PDFs sometimes display oddly on Kindle because the screen is narrower than a printed page, so test with one file before sending a large batch.

Finding your Kindle's email address

Log into your Amazon account on a computer or phone and go to Manage Your Content and Devices. This link is usually in the top right corner under your account name, or you can search for it in the Amazon help section. Once you are there, click the Devices tab at the top.

Find your Kindle in the list — it will have the model name next to it, like "Kindle Paperwhite" or "Kindle Scribe". Click on it, and you will see a section labeled Send-to-Kindle Email Address. This is the address you will email PDFs to. Write it down or copy it somewhere you can find it later.

Approving your email address so Amazon accepts your files

Amazon only accepts files from email addresses you have put on an approved list. This is a security measure so someone else cannot send files to your Kindle. Go back to Manage Your Content and Devices and click the Settings tab instead of Devices.

Scroll down until you see Approved Personal Document E-mail List. Click Add a new approved e-mail address and type in the email address you will be sending PDFs from. If you are sending from your own email, use that address. Amazon will send you a confirmation email to make sure the address is real — click the link in that email to finish approving it. After that, any PDF you send from that address will go straight to your Kindle.

Sending a PDF to your Kindle by email

Open your email and start a new message. Put your Kindle's send-to-Kindle address in the To field. Leave the subject line blank or write something short — Amazon ignores it anyway. Do not write anything in the message body; Amazon will reject the email if there is text in the body.

Click Attach or the paperclip icon and choose the PDF file you want to send. The file must be smaller than 50 MB, which covers almost all PDFs. Once you have attached it, send the email. Within a few minutes, the PDF will show up in your Kindle library under Documents, and you can open it and start reading.

Using a USB cable if email does not work

If you do not want to use email or if your approved address list is full, you can plug your Kindle directly into a computer with a USB cable. Use the same cable that charges your Kindle — most modern Kindles use USB-C. When you plug it in, your computer will show your Kindle as a removable drive, similar to a flash drive.

Open the Kindle drive and look for a folder called Documents. Drag your PDF file into this folder. Once the file finishes copying, unplug the Kindle. The PDF will appear in your library under Documents, and you can read it like any other file on your device. This method works on Windows, Mac, and Linux computers.

Why some PDFs look strange on Kindle and what to do about it

Kindle screens are narrower than a printed page, so PDFs sometimes shrink the text to fit or cut off the edges. This happens most often with PDFs that were made from scanned books or documents with wide margins. The text may become too small to read comfortably, or you may have to rotate your Kindle sideways to see the full width.

Before you send a large batch of PDFs, test one to see how it displays. If it looks unreadable, you have two choices: convert the PDF to a different format first, or accept that you will need to zoom in and scroll more while reading. Some people find that rotating the Kindle to landscape mode helps, especially for documents with charts or tables.

Converting a PDF before sending it if the original does not display well

If a PDF looks too small or cuts off text, you can convert it to a Kindle-friendly format before sending it. The free tool Calibre does this — read it from calibre-ebook.com, install it on your computer, and open the program. Click Add Books, choose your PDF, and then click Convert Books.

In the conversion window, change the output format from EPUB to AZW3, which is Kindle's native format. Click OK and let Calibre finish. Once it is done, you will have a new file with the same name but a .azw3 ending. Send this converted file to your Kindle by email or USB cable the same way you would send a PDF. The text will usually be larger and easier to read, though the layout may look different from the original.

Frequently Asked Questions

Can I send a PDF to my Kindle from my phone?

Yes. Open your email app on your phone, start a new message, and attach the PDF the same way you would on a computer. Send it to your Kindle's send-to-Kindle address. The process is identical — the PDF will show up in your library within a few minutes.

What happens if I send a PDF larger than 50 MB?

Amazon will reject it and send you an error email. Split the file into smaller pieces using a PDF tool, or try converting it with Calibre first — converted files are often smaller. If the PDF is a scanned book with hundreds of pages, you may need to split it into two or three separate files.

Do I have to pay to send PDFs to my Kindle?

No. Sending files by email to your send-to-Kindle address is always free. Some older Kindles had a small charge for sending files over cellular, but current models do not. Using a USB cable costs nothing.

Can I organize PDFs into folders on my Kindle?

Kindle does not have folders, but you can create collections to group files together. On your Kindle, go to your library, find the PDF, and hold down on it. Select Add to Collection and create a new one or add it to an existing collection. Collections appear on your home screen and make it easier to find related files.

What if my Kindle does not show up when I plug it in with USB?

Try a different USB cable first — some cables only charge and do not transfer data. If that does not work, restart your Kindle by holding the power button for 20 seconds. On a computer, you may need to install Kindle drivers — search for "Kindle USB drivers" on Amazon's support site and follow the instructions for your operating system.