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How to Convert OST to PDF With or Without Outlook? Complete Guide

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Published By Jamie Kaler 
Rollins Duke
Approved By Rollins Duke
Published On October 15th, 2026
Reading Time 6 Min Read

Summary: To convert OST to PDF, users have to first open Outlook & load mailbox then, open folder containing emails now, select required email then, click File > Print. Afterwards, select Microsoft Print to PDF & click Print. At the end set location, enter file name & click Save. This method can print one email at time for converting large collections OST files. SO, we have presented a direct solution to change OST to PDF in bulk.

Do you need reliable solution to convert OST file to PDF? Most Users perform conversion for easy sharing, archiving or accessing emails outside Outlook. In this blog we are going to teach you how to convert OST file to PDF using three methods including manual & direct methods. Let’s start the blog and learn with step-by-step guide.

Reasons to Export OST File to PDF

Here we are going to describe some amazing and advanced points about PDF format, which compel users to convert OST to PDF format.

  • Easy to Access: Users can easily open PDF files on any device like Mobile phones, Tablets, Laptops, Desktops, etc from any destination.
  • Simple to Print: Also, users can simply print the PDF file on an A4-size sheet without any modification in printer properties.
  • Easy for Sharing: PDF file is a lightweight and compressed format, so you can easily share this file with anyone.
  • Password Protection: Also, it provides users with a password security option, so that users can easily protect their files.

Manual Way to Convert OST to PDF With Outlook

Method 1: Export OST File to PDF Using Microsoft Print to PDF Option

Prerequisites:

  • The OST file is accessible through Outlook profile that created it.
  • An orphaned or disconnected OST file cannot be opened directly in Outlook.
  • Microsoft Print to PDF is enabled on your Windows system.

Steps:

  1. Firstly, open Outlook and load mailbox.
  2. Open folder containing the email(s).
  3. Select the email you want to convert.
  4. Click File > Print.
  5. Under Printer, select Microsoft Print to PDF & click Print.
  6. Finally, set the destination folder, enter file name & click Save.

Method 2: Convert OST to PDF Using Adobe Acrobat

Prerequisites:

  • OST file must be accessible in classic Outlook with the profile connected.
  • Adobe Acrobat Standard or Pro (not Reader) must be installed.
  • Outlook should be set as default mail client.

Steps:

  1. Firstly, Open Outlook and load the mailbox.
  2. Confirm Acrobat tab is on the ribbon. If not then, enable Acrobat PDFMaker Office COM Addin under File > Options > Add-ins > COM Add-ins.
  3. Select the email(s) or folder to convert.
  4. Click Acrobat > Create PDF (or folder conversion option).
  5. Choose if you want to combine into one PDF or include attachments.
  6. Select the destination, enter file name & click Save.
  7. Open the PDF to verify the output.

Limitations

  1. Adobe Acrobat cannot directly convert OST files & relies on Outlook to access emails.
  2. First method converts emails one at a time and does not include attachments.
  3. This method will take a lot of time if you want to convert large OST file
  4. Original OST folder structure is not maintained.
  5. This cannot convert orphaned, corrupted or inaccessible OST files.

Quick Way to Convert OST to PDF in Bulk Without Outlook?

RecoveryTools OST Converter is reliable solution which is professional recommended application. It convert OST files without requiring Outlook making it more convenient for users. This tool convert multiple OST files at once rather than processing them individually. It helps users to recover & export data from damaged, inaccessible or orphaned OST files using recovery mode. This tool provides various file formats and email platforms. It maintains original mailbox folder structure in output making emails easier to locate.

Demo Limitation: This tool also comes up as free-to-use software, so that users can check its works. However, during the trial, it will only allow the users to export the first 25 emails from the OST file to PDF. So, you need to first activate the software by purchasing its license key before converting your entire mailbox items.

How to Convert OST File to PDF? Complete Steps

A user can easily export OST files to PDF format using this amazing tool. The working of this software is very easy. Just follow these simple steps to get it:

      1. Install and run OST to PDF Converter tool on your computer.
        download ost to pdf converter
      2. Load Outlook OST files in its panel in dual ways, i.e., Select Files or Select Folders.
        load ost file
      3. Choose only the desired OST mailbox folders in the utility panel.
        select folders from preview panel

      4. Select the PDF option from the list of 30+ saving formats to convert OST to PDF.
        select pdf from saving option

      5. Apply the advanced filter settings from the Filter Options tab for selective OST to PDF conversion.
        Advanced filter option
      6. Apply file name from the file naming option.
        set file name
      7. Now, set destination path and click on Convert button to start OST to PDF conversion process.
        click convert

Effective Features of OST to PDF Converter

Here are some effective features of OST file to PDF Converter software:

  • Select At any Location: Lets users to choose where converted files are saved.
  • No Need for Outlook: Convert OST files without requiring Outlook. It makes the process more convenient.
  • Batch Conversion: It converts various OST files in one operation rather than processing them one by one.
  • Multiple Saving Options: This tool save OST file into PST, MSG, EML, MBOX, PDF & other supported formats and email platforms.
  • Preserve Folder Hierarchy: It maintains original mailbox folder structure in output making emails easier to locate.
  • Windows & Mac Support: Gives users option to work on either supported operating system.
  • Export Emails with Attachments: It retains attached files alongside email messages during conversion.

Frequently Asked Questions

Ques 1: Can you save an Outlook file as a PDF?

    1. Go to Outlook account.
    2. Open any email to print.
    3. Click on the More >> Print icon.
    4. Choose Destination as Save as PDF.
    5. Browse the path and hit the Save icon.

Ques 2: How do I convert an OST File?

Ans: Yes, you can convert OST files into PST format in your Outlook account.

    1. Open your Outlook.
    2. Hit on File >> Open & Export >> Import/Export.
    3. Choose the Export to a File option.
    4. Select the Outlook Data File(.pst) option.
    5. Choose the required folders.
    6. Browse the path and hit the Finish button.

Ques 3: What is the OST file format?

Ans: OST is a file format that stands for Offline Storage Folder. This file format is created only in the Outlook email client.

Ques 4: How do I open an OST file without Outlook?

Ans: Yes, you can open an OST file without an Outlook email client using the free RecoveryTools OST Viewer.

Final Words

In this blog, we learned about how to convert OST to PDF file using manual methods and professional solution. If users need to convert multiple OST files, then using direct professional solution can be more convenient option for them. It convert orphaned, corrupted or multiple OST files. It keeps email details, attachments & folder structure in their original form. If you still have any query related to the process then contact support team, they will assist you.

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