How to convert PST to PDF (Outlook data files)
PST to PDF is a two-stage job: a PST is a whole Outlook mailbox, so you first open it in Outlook or a PST converter, then save the messages as PDF one by one or in a batch. This page explains three working routes and which fits a few messages versus a full archive. SaveMail cannot read PST files in the browser, but it converts the MSG or EML files you export from Outlook, with attachments listed and nothing uploaded.
Why a PST cannot be converted to PDF in a browser
A .pst file is not a bundle of emails; it is a database. Outlook stores folders, messages, contacts, calendar items and an index in a proprietary structure that only Outlook's own engine (MAPI) reads reliably. Large PST files run to tens of gigabytes. Parsing that in a browser tab would need the whole file in memory plus a reimplementation of Outlook's storage format, which is why no in-browser tool, including SaveMail, opens PST.
So every PST to PDF route goes through something that can read the database: Outlook itself, or a converter program that has its own PST reader. The PST file explainer has the background; opening a PST file lists viewers if you only need to look inside.
Have the email as a file (EML, MSG, MBOX)? Convert it to PDF in your browser: nothing is uploaded.
Method 1: open the PST in Outlook and print to PDF
- In classic Outlook for Windows go to File → Open & Export → Open Outlook Data File, browse to the .pst and open it. The mailbox appears as a new folder tree in the left pane.
- Open a message, then File → Print. Choose Microsoft Print to PDF as the printer (on a Mac, the PDF button in the print dialog) and save.
- Save attachments separately: right-click an attachment → Save As, or File → Save Attachments for all of them.
- Repeat per message. Outlook has no "whole folder to PDF" command.
This is the right route for a dozen messages. The PDF has a text layer and Outlook's print layout, but no attachments inside, and headers like Message-ID are not shown. Details for the printing step are on exporting Outlook emails to PDF.
Method 2: export messages as MSG and convert them in the browser
- Open the PST in Outlook as in Method 1.
- Select the messages you need (Ctrl+A for a whole folder) and drag them to a folder on your desktop. Outlook writes one .msg file per message.
- Open MSG to PDF, drop a file, press Save as PDF, then Open another file for the next one.
- Download attachments from the list under each message, singly or as a ZIP.
The gain over printing from Outlook: the PDF shows From, To, Cc, Date, Subject and Message-ID at the top, inline images are in place, attachments are listed and downloadable, and the file stays in your browser tab. The cost: still one message at a time, and no merged PDF of a folder.
Method 3: a PST to PDF converter program
Desktop converters (SysTools, Aryson, SysInfo and similar names come up in searches) read the PST directly, walk the folder tree and write PDFs in bulk, often with options to embed attachments or save them alongside, keep the folder structure and add a date to the file name. They are paid Windows programs; most offer a trial that converts a limited number of messages.
Before buying, run the trial on the real PST and check three things: whether Outlook needs to be installed, whether attachments end up inside the PDF or in a separate folder, and whether the PDF text is searchable rather than an image. For a full mailbox going to a lawyer or an auditor, this is the practical route.
Which method when
| Situation | Use | Attachments | Cost |
|---|---|---|---|
| A few messages, Outlook on hand | Method 1: open PST, print to PDF | Save separately | Free |
| Up to a few dozen messages, need headers and attachments kept | Method 2: drag to MSG, convert in browser | Listed, ZIP | Free |
| Whole mailbox, thousands of messages | Method 3: batch converter | Depends on the tool | Paid |
| No Outlook at all | Method 3, or a free PST viewer to export messages | Depends on the tool | Varies |
| Need the mail in a mailbox, not PDFs | Import PST to Gmail | Kept | Free |
PST to HTML, Word and other formats
Some searches ask for PST to HTML or PST to DOC. Outlook's File → Save As on an open message offers HTML and Text as well as .msg, one message at a time. The browser converter has a Download HTML button that saves the rendered message as a single HTML file, which Word opens if you need a .docx.
Two things are not possible in any direction worth mentioning: PDF back to PST (a PDF has no mailbox structure to restore), and reading an OST file outside the Outlook profile that created it. If the goal is simply a backup rather than readable documents, keep the PST and see backing up Outlook emails.
Frequently asked questions
How to convert PST to PDF?
Open the PST in Outlook (File → Open & Export → Open Outlook Data File) and print messages to PDF, or drag them out as .msg files and convert those in the browser. For a whole mailbox use a batch converter.
How to convert Outlook PST to PDF with attachments?
Export the messages as .msg and convert them on the MSG to PDF page: attachments are listed and downloadable. Batch converters usually offer an embed-attachments option.
Is there a free PST to PDF converter?
Outlook's own print and the browser converter for exported MSG files are free. Batch PST converters are paid, with trial limits.
Can I convert PST to PDF without Outlook?
Only with a converter or viewer that has its own PST reader. A browser cannot parse PST, so the in-browser converter needs MSG or EML files instead.
How to convert Gmail to PST?
Add the Gmail account to Outlook over IMAP and export it with File → Open & Export → Import/Export. The full procedure is on the export Gmail to PST page.
Can I convert PDF to PST?
No. A PDF holds pages, not messages, so there is nothing to put back into a mailbox file.