PDF Sent with Send to Kindle Doesn’t Show Up: Causes and Solutions

If you send a PDF to your Kindle using Send to Kindle and it isn’t showing up, there are a few common causes. Here’s what to check, why it happens, and how to make sure your file arrives.

Why Isn’t the PDF Showing Up on Your Kindle?

Send to Kindle lets you send documents to your Kindle from your computer or phone, using email or the web (amazon.com/sendtokindle). PDFs sometimes don’t arrive or don’t show up in your library. Here are the most frequent reasons:

• The file is too large: Send to Kindle accepts files up to 200 MB. Larger files are rejected.
• Unsupported file format: Send to Kindle accepts PDF, EPUB, DOC, DOCX, TXT, RTF, HTML, and images. It does not accept AZW3 or MOBI. Files in other formats won’t be delivered.
• Email address not authorized: Only approved addresses in your Amazon account can send files by email. This is set in “Content and Devices” → “Preferences” → “Personal Document Settings.”
• Kindle not connected to Wi-Fi: Your Kindle must be online and synced to receive files. If it’s offline, the PDF will be pending.
• File rejected: If Amazon can’t process the document or there’s an error, you’ll get an email saying it couldn’t be delivered.

How to Check if the PDF Arrived

1. Check your email: Amazon sends a message if your document was delivered or if there was a problem.
2. Sync your Kindle: Swipe down from the top of your Kindle’s screen, tap “Sync,” and wait a few seconds to download new files.
3. Look in your library: On your Kindle, use the “Documents” filter. Files sent with Send to Kindle often show up as “Documents.”
4. Check the PDF file size: If it’s over 200 MB, Send to Kindle won’t accept it. Compress or split the PDF if needed.
5. Verify the email address: If you sent the file by email, make sure your address is authorized in Amazon.

What If the PDF Still Doesn’t Show Up?

If the PDF still isn’t there after checking these steps, the file itself may be damaged or have an unusual structure, or Amazon couldn’t process it. Here’s what you can do:

• Try resending the file from another authorized address.
• Convert the PDF to EPUB before sending: EPUB files usually arrive as reflowable books. Tools like Legible let you convert PDFs to EPUB online, handling columns, headings, and scanned pages. For step-by-step instructions, see this guide.
• Transfer the file by cable: If the PDF is too large or not accepted, connect your Kindle by USB and copy the file to the “documents” folder. PDFs transferred this way display as fixed pages, not reflowable text. For more, see this guide.

Should You Convert the PDF to Another Format?

If you want the PDF’s text to adjust to your Kindle’s font size, convert it to EPUB before sending. Send to Kindle accepts EPUB and converts it automatically. If your PDF has columns, lots of headings, or is a scan, Amazon’s conversion may struggle. Legible can handle these cases and create reflowable books with proper indexes and chapter detection. For more details, see this guide.

Summary: How to Make Sure Your PDF Arrives

• Check that your file is under 200 MB and is a PDF or EPUB.
• Sync your Kindle with Wi-Fi and check the “Documents” filter.
• Make sure your email address is authorized with Amazon.
• If it fails, convert the PDF to EPUB with a reliable tool like Legible and resend.
• As a last resort, copy the file by cable.

For more on why Send to Kindle sometimes doesn’t work with PDFs and how to make sure your files arrive, see this guide.