Documents conversion
Convert PDF to AZW3
Updated Jul 2026
PDF is a fixed-page document format, and AZW3 (Kindle Format 8) is Kindle's ebook format, which reflows text to fit whatever screen and font size you're reading on. To convert, open the PDF in a converter and export it as AZW3. Doing this on your own computer means the document never has to leave your machine.
- Extension
- Type
- Documents
- Typically
- The universal document format
- Metadata
- Carries EXIF
- Extension
- .azw3
- Type
- Ebooks
- Typically
- Kindle
Convert PDF to AZW3 on your own computer. Nothing uploads.
How to convert PDF to AZW3
- Open Morphjet and drag in the PDF file, or a whole folder of them.
- Choose AZW3 as the output format.
- Convert. The AZW3 file lands next to the original PDF, and nothing leaves your machine.
PDF vs AZW3: what actually changes
| AZW3 | ||
|---|---|---|
| Opens on Kindle | Kindle devices can view PDFs but won't reflow them | Yes, native Kindle format |
| File size | Larger, especially with images or scanned pages | Smaller, especially for text-heavy documents |
| Text reflow | No, fixed page layout | Yes, text reflows to fit the screen and font size |
| Quality | Lossless | Lossless |
| Metadata | Yes, carries title, author, and other document metadata | Yes, most of it carries over |
When to convert, and when not to
Convert PDF to AZW3 when you want to read a text-heavy document, like a novel, report, or article, on a Kindle with adjustable font size and text that reflows properly.
Keep the PDF if it's full of tables, multi-column layouts, or precise formatting, like a scanned form or a paper with figures, since AZW3 reflows those elements and can scramble the layout.
Why not just use an online converter?
PDFs often carry metadata like author name, company, and editing history embedded by whatever program created them. Send that file to an online converter to get an AZW3, and a stranger's server sees that metadata along with the entire content of the document. Converting locally means the file stays on your machine the whole time.
Questions
Does converting PDF to AZW3 lose quality?
Text-based PDFs convert cleanly, since the words themselves aren't degraded. But layout-heavy PDFs, like ones with tables, columns, or images, can look different once reflowed, because AZW3 is built to reflow text rather than preserve a fixed page.
Will my Kindle actually open the AZW3 file?
Yes. AZW3, also called Kindle Format 8, is the native format that current Kindle devices and apps read directly.
Does the AZW3 keep the PDF's metadata?
Basic details like title and author usually carry over, but exactly what survives depends on how the original PDF was structured.
Can I convert a scanned PDF to AZW3?
Yes, but if the pages are images rather than actual text, the AZW3 will just contain those images without reflowing, so it won't behave like a normal ebook.
Can I do this without uploading the document anywhere?
Yes. Morphjet converts PDF to AZW3 directly on your computer, so the file never has to touch the internet.
Morphjet converts PDF, AZW3, and 1,800+ other formats, all on your machine. Launching this July.