PUB to JPEG Converter

How to Convert PUB to JPEG Online

1. Upload Your PUB File: Drag and drop or click "Add Files" to select your Microsoft Publisher (.pub) document. Batch upload is supported — convert several flyers, newsletters, or brochures in one pass.
2. Pick Quality Preset: Default is Very High. Choose Highest for print-grade output, High or Medium for email and social sharing, or Low for thumbnails. You can also set a Specific file size in MB/KB, or scale by Resolution Percentage if you want a numeric target instead of a preset.
3. Set Resolution (Optional): Keep original to mirror Publisher's page size, pick a Preset (2160p, 1440p, 1080p, 768p, 480p, 360p), or enter exact Width × Height. Width and Height fields preserve aspect ratio when only one is filled.
4. Choose File Extension and Convert: Under File Extension pick JPEG or JPG (the two extensions produce byte-identical files). Click Convert. Files process in your browser session — no Publisher install, no sign-up, no watermark.

Why Convert PUB to JPEG?

Microsoft Publisher (.pub) is a proprietary desktop-publishing format that only opens reliably in Publisher on Windows. Microsoft has confirmed Publisher will no longer be supported after October 2026: perpetual-license users keep limited access, but Microsoft 365 subscribers lose access to the app entirely on October 13, 2026. Microsoft's own guidance is to export .pub files to a portable format before the cutoff. JPEG is the most universal target — every browser, phone, email client, and social platform renders it without plugins.

• Future-proof against Publisher's retirement — With Publisher discontinued in October 2026, .pub will become unreadable on any new Microsoft 365 install. JPEG remains an ISO/IEC 10918 standard supported by every OS for decades to come.
• Share flyers and newsletters in email — Gmail, Outlook, and Yahoo cap attachments around 20-25 MB. A 5 MB Publisher flyer typically renders to a 300-800 KB JPEG, so multi-page newsletters fit comfortably in a single message.
• Post designs on social media — Instagram, Facebook, LinkedIn, and X all accept JPEG natively but reject .pub. Convert each Publisher page to JPEG at 1080p or 1440p and post without re-uploading or screenshotting.
• Embed in websites and CMS platforms — WordPress, Squarespace, Shopify, and most email-marketing tools accept JPEG but not PUB. Conversion sidesteps awkward PDF embeds for hero images and announcement banners.
• Send proofs to non-Publisher recipients — Mac, Linux, ChromeOS, iPad, and Android users cannot open .pub natively. LibreOffice Draw imports some files but typically breaks fonts and layout on complex Publisher documents. A JPEG renders identically everywhere.
• Archive legacy Publisher work before October 2026 — Microsoft recommends bulk-exporting .pub files now. JPEG (alongside PUB to PDF) preserves the visual record even if Publisher disappears from your machine.

PUB vs JPEG — Format Comparison

Quality Preset and Resolution Guide

Frequently Asked Questions

What happens to .pub files after Microsoft Publisher is retired in October 2026?

Per Microsoft Support, Microsoft 365 subscribers lose access to Publisher on October 13, 2026, and cannot open .pub files in the app after that. Perpetual-license holders (Office 2019/2021 LTSC) can keep using it without security updates. Microsoft explicitly recommends converting .pub files to PDF or another portable format before the cutoff. JPEG is a one-way image export — pair it with PUB to PDF if you also need a multi-page archive copy.

My PUB file has multiple pages — what do I get back?

Each page of the Publisher document is exported to its own JPEG, named with a page suffix. You download all pages together as a zip when more than one is produced. This works for booklets, newsletters, and multi-page brochures. If you need a single multi-page file instead, use PUB to PDF.

How do the Quality presets compare to Publisher's built-in "Save As JPEG" resolutions?

Publisher's Save As dialog defaults to 150 dpi and tops out at "Commercial Printing (300 dpi)." Our Quality Preset works on the encoded JPEG itself rather than DPI: "Highest" applies minimal lossy compression (visually indistinguishable from the source), "Very High" matches the visual quality of Publisher's 300 dpi output, and "Medium" approximates Publisher's default 150 dpi preset. For print, use Highest with original resolution.

Why not just use LibreOffice Draw to open my .pub file?

LibreOffice Draw can import many .pub files for viewing, but the import engine is reverse-engineered and frequently mis-renders fonts, kerning, drop shadows, transparency, and grouped objects on complex newsletters. For a visual export where layout fidelity matters, converting the original .pub directly to JPEG produces a more accurate result than routing through Draw's importer.

Will text in my flyer stay sharp, or will it look fuzzy?

Text sharpness comes from two settings working together: resolution (pixel count) and quality (JPEG compression ratio). At Very High quality with original resolution preserved, body text at 10pt and headlines stay crisp at print sizes. Dropping to Medium quality or 480p resolution introduces visible JPEG ringing around small text — fine for thumbnails, not for documents anyone will read. If text matters, use Highest quality and keep original resolution.

What's the difference between selecting JPEG and JPG in the File Extension dropdown?

None — the bytes are identical. JPEG is the official ISO name; JPG is the legacy three-letter extension Windows preferred before long extensions were universal. Both render the same way in every browser and OS. Pick whichever your downstream system or workflow prefers.

Can I get a transparent background like PNG offers?

No. JPEG does not support transparency — every output has a solid background (white by default for Publisher exports). If your flyer is designed against a transparent backdrop or needs to overlay onto other content, use PUB to PNG instead. PNG keeps the alpha channel intact.

Is my PUB file private during conversion?

Yes. Files are uploaded over HTTPS, processed in your private session, and auto-deleted from our servers shortly after you download the output. There is no account requirement, no watermark on the JPEG, and no email harvest — you can close the tab and the file is gone.

What if my .pub file was created in a very old version of Publisher?

We support Publisher files from Publisher 2003 through Microsoft 365 (the entire .pub format era). Very old Publisher 98/2000 files use a different binary layout — if conversion fails, open the file once in any modern Publisher (or the free Office trial) and re-save before converting. For ongoing batch work, also consider merging your Publisher files to a single PDF archive for long-term storage.