How to Bulk Convert .EML Files to PDF?
Jun 26, 2026
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One common feature among all email clients, including Mozilla Thunderbird, Entourage, Apple Mail, etc. is that they all store their emails in .eml file format. However, managing individual messages is difficult because EML files retain individual messages which include subject line, sender and recipient details, contacts, events, etc. Converting EML files into a manageable format becomes necessary as a result.
Due to the easy accessibility of PDF files, users typically decide to import EML files into PDF format. Because PDF files can be password secured, exchanging them is safe and doesn't jeopardize data confidentiality.
This post will cover both manual and automated methods to understand how to bulk convert .eml files to PDF.
Why Is a PDF Format a Better Choice?
Let's first examine the several advantages of converting an EML file to a PDF before learning how to do it. Following are the main causes:
- PDF files are easy to share and access on any device.
- In judicial documentation, PDF is the only accepted digital file format.
- To prevent unauthorized access, PDF offers password-protection features.
- The original file hierarchy, including layout, headers, text, etc., is preserved in PDF files.
- PDF files are easily printable.
How to bulk Convert .EML files to PDF through Manual Techniques?
There are two methods using which a user can choose to convert their EML files into PDF format:
First Method: Using the Mozilla Thunderbird Approach
We must first ensure that Mozilla Thunderbird is set up and installed on their machines. Take the steps listed below:
- Configure Mozilla Thunderbird.
- Click on Menu > Add-ons and Themes.
- Search “Import/ExportToolsNG” > “AddOn” > “install it”.
- Next, restart the software.
- Now, import the EML file to Thunderbird.
- Right-click on the folder that has the EML files.
- Now, select “Import/ExportTools NG” > choose all the messages.
- Choose PDF format.
- Browse the destination location.
Second Method: Using Microsoft Outlook
Make sure that MS Outlook is configured and follow the steps given below:
- Open Outlook > drag EML file to the newly created folder in Outlook.
- Select the EML file.
- From the File menu, select Print.
- Select a destination folder to save the PDF.
Challenges of Manual Techniques
Manually converting .eml files to PDF has multiple disadvantages. Below are the major risks:
- The manual conversion methods do not allow for bulk migration.
- Since the folder hierarchy is compromised, manual actions are not advised.
- During the relocation process, there is a significant risk of data loss.
- The manual converting process takes a very long time.
- When using the manual method, attachments are not stored.
How to bulk convert .EML files to PDF using an Expert Tool?
It can occasionally take a long time to convert .eml to.pdf manually. There is always a risk of losing essential attachments and data. As a result, most users decide to use automated software to export EML files into PDF format. One such software is CubexSoft EML to PDF Converter. In addition with bulk conversion of EML files, the program also converts attachments with 100% accuracy. Users find this software easy to use because of its user-friendly interface, and it works with both Mac OS and Windows OS. The program allows users to adjust advanced PDF page settings, including file naming option, advanced PDF option, advanced filter option, etc.
How to Convert Files into PDF Using this Software?
- Open the EML Converter tool.
- Next, click on “Add Files”.
- Now, either “Select Files” or “Select Folders”.
- Go to the exact “file” or “folder” > click “Open”.
- You’ll see all your files in the left panel, choose the ones you want to “Export”.
- Press “Export”.
- Choose, “PDF” from the “Select Saving Options”.
- Choose from the drop-down “File Naming Options”.
- Choose between “Advanced PDF Options” or “Attachment Options”.
- Enter your desired “Destination Path”
- Click “Convert”.
Reasons to Choose the Automated Tool
- With just a few clicks, the program can export a huge number of EML files.
- Even if users don't already have Adobe Acrobat Reader installed on their devices, it still functions.
- All versions of Windows, including 11, 10, 8.1, 8, 7, and others, are compatible with the tool.
- It transforms the EML files without losing any data and with 100% correctness.
- This program can be used by people with any technological background.
- Before the final conversion, users can "Preview" their PDF files.
- The converting process is made simpler by the dual features that allow you to upload numerous files or directories.
- Users can combine the attachments into a separate file or into the same PDF using the advanced filter options.
- 25 EML files can be converted using the program's free demo feature.
Sum Up
We attempted to find out how to bulk convert .EML files to PDF format using both manual and expert methods throughout this article. The method that users choose will depend on their needs. Nonetheless, since the automatic approach is easier than the human approach, it is always advised to use it.
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