MBOX to PDF Converter: Convert MBOX Files to PDF, Free Download

How to download and use MBOX to PDF Converter Software

Add your mailboxes

Click Add File for one or more .mbox files, drag them into the window, or use Add Folder to pull every .mbox from a Thunderbird profile, including the .sbd subfolders.

Pick what to export

Each mailbox shows up as a node in the tree with a checkbox. Click a node to see its messages, then type in the filter to narrow by sender or subject.

Preview and choose PDF

Click any message to read it in the preview pane. Set the output to PDF and pick a destination; each mailbox gets its own subfolder, so nothing overwrites.

Convert MBOX to PDF

Press Start. The MBOX to PDF Converter Software processes every checked mailbox and saves each message as its own PDF, showing progress as it goes.

Made for private, offline email archiving

The program turns a mailbox you can no longer open into clean PDFs.

Everything stays on your PC. The conversion runs locally, so your mail is never sent to a web service. That matters when a mailbox holds sensitive legal or HR correspondence. Most online converters also cap uploads around 50 MB, and a real archive is much bigger than that.
No mail client required. You do not need Thunderbird or Apple Mail installed. Point the program at a saved .mbox and read it on Windows, even when the account that made it is long gone.
A record you can defend. A PDF cannot be casually edited. It holds the whole email, headers and all, in one fixed document. Courts and auditors ask for mail as PDF for that reason, not a raw mailbox anyone could quietly change.
No size limit. A 6 GB mailbox is too big for a browser upload, and printing it one email at a time takes hours. The desktop app does it right on your PC.

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Message list with a live filter

Every mailbox opens as a list of messages with Subject, From, To, Date, and Size. Filter by sender, recipient, subject, or body text to find the ones you need before export.

Whole folders at once

Add a single .mbox, several together, or a whole directory. Add Folder walks the tree and finds every .mbox inside, including the .sbd subfolders Thunderbird uses for nested mail folders. Each file becomes its own node you can check or skip.

Keeps the formatting intact

Messages render through a full HTML engine. The original colors, inline images, and sender layout remain in the PDF. The output is not a flattened plain-text dump.

Batch export, one PDF per message

Check the mailboxes you want and the converter handles them in a single run, writing one PDF per message into a per-mailbox subfolder. A 109-message file produces 109 named documents with no name collisions.

Who is MBOX to PDF Converter Software for?

Legal, HR, and compliance

For a litigation hold or an audit, convert the exported mailbox once and keep the records as PDF without a mail client.

Leaving Thunderbird or Apple Mail

A move to a new computer or client leaves old .mbox files behind. Turn them into PDFs you can open anywhere, even when the old account is gone.

Anyone with a Gmail Takeout export

Google Takeout hands your Gmail back as one big .mbox. Point this tool at that file to read it on Windows and save the messages you care about as PDF.

MBOX to PDF Converter Software

Price

from $ 29.99

Version

1.5

File Size

6.5 Mb

Last updated on

10/09/26

System Requirements

Windows 11/10/8.1/8/7 (32/64 bit)
Intel i3, AMD Ryzen 5 or above
4 GB of RAM or above
NVIDIA® GeForce® series 8 and 8M, Intel® HD Graphics 2000, Quadro FX 4800, Quadro FX 5600, AMD Radeon™ R600, Mobility Radeon™ HD 4330, Mobility FirePro™ series, Radeon™ R5 M230 or higher graphics card with up-to-date drivers
1280 × 768 screen resolution, 32-bit color
1 GB of free hard disk space or above

Frequently Asked Questions

Do I need Thunderbird or another email client installed?

No. The MBOX to PDF Converter download reads the saved .mbox file directly. The mail client that created it does not have to be on the PC, or even exist anymore. Just want a look inside first? Our MBOX Viewer Tool reads the same mailbox without converting anything.

Are inline images and HTML formatting kept in the PDF?

Yes. The message is rendered with its HTML layout, so colors, tables, and inline images show up in the PDF as the sender meant them. This covers the message body and embedded images, not separate file attachments.

Is my email uploaded to a server?

No. Everything runs on your computer. Nothing goes to SoftOrbits or any cloud, which is the main reason to use a desktop tool instead of an online converter for private mail.

Can it handle several .mbox files or a whole Thunderbird profile?

Yes. Add files one at a time or multi-select a batch. You can also drag a folder in, or use Add Folder to pull every .mbox from a directory and its .sbd subfolders. Each mailbox appears as its own node in the tree.

Does it work on Mac?

No, this is a Windows program (Windows 10 and 11). It does read .mbox files exported from Apple Mail, you just run the conversion on a Windows PC.

Can it merge a whole mailbox into one combined PDF?

Not in this version. It saves each email as its own file. For most archiving and evidence work that is what you want, since every message stays a separate, dated record.

What exactly is an .mbox file?

An .mbox is a single text file that holds every message of a mail folder back to back, each one starting with a 'From ' line. Thunderbird and Apple Mail both use it, and so does a Gmail Takeout export. Windows cannot open it on its own, and to move the same mail into Outlook you first convert the mbox to PST.

How do I get an .mbox out of my email in the first place?

In Thunderbird the files already sit in your profile folder; the ImportExportTools add-on exports them too. Apple Mail uses Mailbox then Export Mailbox. Gmail gives you one through Google Takeout.

What about .EML, .MSG, or .PST files?

Each of those formats has its own SoftOrbits tool. Use the EML to PDF Converter for single saved messages, the MSG to PDF Converter for Outlook message files, and the PST to PDF Converter for a full Outlook archive.

Download MBOX to PDF Converter Software for Windows