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What is PUB?

Microsoft Publisher (PUB) is a desktop publishing format used for creating professional layouts, newsletters, flyers, and marketing materials.

What is MSG?

Outlook Message (MSG) is the email message format used by Microsoft Outlook, storing emails with attachments and metadata.

When Should You Use PUB vs MSG?

Use PUB When...

Reach for PUB when your priority is desktop publishing, flyers, newsletters — its efficient compression makes sharing fast and storage minimal.

Use MSG When...

Reach for MSG when your priority is email archiving, outlook data extraction — its uncompromising quality ensures every detail is preserved.

PUB vs MSG: Key Differences

  • •The core technical difference: PUB relies on lossy compression whereas MSG uses lossless compression.
  • •Moving from PUB (lossless) to MSG (lossless) means the output file will be larger — but every bit of the original is preserved.
  • •How transparency is handled: MSG supports transparency, so alpha information is preserved during conversion.
  • •Storage footprint: 500KB to 50MB with images for PUB vs Varies by attachment size for MSG.
  • •PUB is optimized for desktop publishing, flyers, newsletters while MSG is designed for email archiving, outlook data extraction — choose based on your specific workflow needs

Advantages of PUB

  • ✓PUB compresses data using lossy methods, keeping file sizes manageable for Desktop publishing, flyers, newsletters.
  • ✓Industry-wide support means PUB files open anywhere — from legacy systems to the latest devices.
  • ✓Small file sizes make PUB ideal for email, web uploads, and cloud storage.
  • ✓From professional software to open-source alternatives, PUB works out of the box.

Advantages of MSG

  • ✓MSG uses lossless compression tailored for Email archiving, Outlook data extraction.
  • ✓MSG is supported natively on virtually every device, browser, and operating system.
  • ✓MSG files are bit-for-bit perfect, preserving every pixel and sample for professional work.
  • ✓MSG integrates seamlessly with all major creative tools and workflows.

Common Use Cases for PUB to MSG Conversion

  • Case studies and whitepapers
  • Professional reports and proposals
  • Academic papers and theses
  • Business contracts and agreements
  • Spreadsheets and data analysis
  • Presentations and slideshows

Industry Applications

Regulatory ComplianceBusiness AdministrationAcademic PublishingLegal DocumentationOffice ManagementTechnical Writing

Best Practices for PUB to MSG Conversion

  • →When converting PUB to MSG, check that tables, images, and embedded fonts transfer correctly — complex layouts may shift between formats
  • →Use MSG as your final distribution format if it offers better compatibility, or keep PUB as an editable master
  • →For PUB to MSG conversions, verify that tracked changes and comments are preserved if needed
  • →Embed fonts to ensure consistent rendering across devices and platforms
  • →Always keep a backup of your original files before converting
  • →Choose the appropriate quality settings for your specific use case

Troubleshooting PUB to MSG Conversion

  • !Page breaks moved after converting PUB to MSG → margin and spacing settings differ between document formats
  • !Tables in the converted MSG are misaligned → complex merged cells and nested tables are handled differently by each format
  • !Headers and footers missing from MSG → verify that the converter supports header/footer extraction for your source format
  • !Special characters appear as gibberish in MSG → the source file may use a different character encoding than expected

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Convert PUB to MSG Online - Free & Fast

Convert PUB files to MSG online for free. High-quality conversion with no registration required.

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About PUB and MSG

PUB

PUB (Publisher PUB) - Microsoft Publisher, desktop publishing format. Best for desktop publishing, flyers, newsletters.

MSG

MSG (Outlook MSG) - Outlook Mail Message, email with attachments and metadata. Ideal for email archiving, outlook data extraction.

Format Comparison

CompressionLossy → Lossless
TransparencySupported
Use CaseConvert from desktop publishing, flyers, newsletters to email archiving, outlook data extraction
File Size~Varies by attachment size after conversion

FAQs

Is converting PUB to MSG free?

Yes, GoConvertFile offers free conversion of PUB to MSG for files up to 100MB. No registration required.

How long does it take to convert PUB to MSG?

Most PUB to MSG conversions complete within seconds for standard-sized files. Larger files may take longer depending on the conversion complexity.

What is MSG best used for?

MSG is ideal for email archiving, outlook data extraction. Outlook Mail Message, email with attachments and metadata

Does converting PUB to MSG lose quality?

No, converting PUB to MSG does not cause additional quality loss — MSG uses lossless compression. However, any artifacts already present in the original PUB file will persist in the MSG output.

What file size should I expect after converting PUB to MSG?

MSG files are typically 2-5x larger than equivalent PUB files because MSG preserves all pixel data. This is expected and necessary for lossless quality.

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