Publisher to JPG Converter

Publisher to JPG Converter

.pub is the proprietary format of Microsoft Publisher, the desktop-publishing app used for flyers, newsletters, brochures and certificates — and one of the few Office formats that almost nothing outside Publisher opens cleanly. JPG is the opposite: a lossy raster format from 1992 that every browser, phone, email client and content system displays without asking questions. Converting .pub to JPG renders each page of your publication into a flat picture you can post, email, or drop into a document without a Publisher licence. With Microsoft retiring Publisher on October 1, 2026, getting artwork out of .pub while tools can still read it is genuinely time-sensitive.

How the Conversion Actually Works

This is not a single-step image conversion — .pub is a page-layout format, not a picture, so there is nothing to "re-save". The file goes through three stages on our servers:

1. LibreOffice imports the .pub through its Draw component (the same libmspub import filter that gives LibreOffice its Publisher support) and exports the layout to PDF.
2. Each PDF page is rendered to a full-colour raster at 300 DPI.
3. Each rendered page is encoded to JPG by libvips at the quality rung you picked.

Two consequences follow from that chain. One JPG comes out per page, so a four-page newsletter downloads as a ZIP of four images. And the rendered pixel size is fixed by the page's physical dimensions — a US Letter page (8.5 × 11 in) renders at 2550 × 3300 px, A4 at roughly 2481 × 3507 px. There is no Conversion Quality (DPI) box on this path; the "Image resolution" control is what changes pixel dimensions.

How to Convert Publisher to JPG

1. Upload Your Publisher File: Drag and drop your .pub onto the page or click "+ Add Files" to browse. Several Publisher files can be queued together.
2. Pick a Quality Preset: Under Advanced Options, "Quality Preset" runs from Highest down to Lowest and is the main quality control. "Very High (Recommended)" is preselected and is the right choice for text-heavy pages.
3. Set the Image Resolution (Optional): "Image resolution" offers Keep original, Preset Resolutions (4320p down to 576p), Resolution Percentage, or an explicit Width and Height. Use it to scale pages down for web use. "Specific file size" is also available if you need to land under a hard byte limit.
4. Convert and Download: Click "Convert" and download your images. Multi-page publications arrive as a ZIP of one JPG per page. No sign-up, no watermark, no Publisher licence needed.

What Each Quality Preset Actually Does

The preset names map to fixed JPEG quality values, and libvips changes chroma handling partway down the ladder — the top three rungs keep full-resolution colour, the rest subsample it. That matters for Publisher pages specifically, because subsampled chroma is what makes coloured text and thin rules look fringed.

Publisher and JPG Compared

Frequently Asked Questions

Does a multi-page Publisher file become one JPG or several?

Several. JPG holds exactly one image per file, so each page of the publication becomes its own JPG and a multi-page .pub is delivered as a ZIP of those images, numbered in page order. If you need every page kept together in one openable file, convert to PDF instead with Publisher to PDF — that is also the format Microsoft points to for getting content out of Publisher.

Which Quality Preset should I use for a page full of text?

Stay at "Very High" or move up to "Highest". Publisher pages are usually text and vector artwork rather than photographs, and that is exactly the content JPEG handles worst — sharp black-on-white edges are where ringing artefacts show up first. In our testing of the same encoder ladder this page uses, the Highest, Very High and High rungs all preserved full 4:4:4 chroma, while Medium and below switched to 4:2:0 subsampling, which is what puts coloured haze around thin type and hairline rules. If the file size at Very High is too big, reduce the pixel dimensions with "Image resolution" before you reduce quality — downscaling a text page degrades it far more gracefully than crushing its quality.

Why is there no DPI setting on this page?

The render happens at a fixed 300 DPI and the Conversion Quality (DPI) box does not render on this converter, so pixel dimensions are set by the page's physical size instead. Work backwards from how you will use the image: a Letter page renders at 2550 × 3300 px, which is already ample for screen use and for printing at original size. To make it smaller, use "Image resolution" — Preset Resolutions, Resolution Percentage, or an explicit Width and Height.

Will the JPG keep my Publisher text searchable or editable?

No. The conversion flattens each page into pixels, so the text cannot be clicked into, searched, restyled or copied afterwards. That is inherent to any image target, not a limitation of this converter. If you need the words back, convert to Publisher to PDF first — a PDF keeps the text as text, and you can export from there to Word if you need to edit it.

How faithful is the rendered page to the original Publisher layout?

.pub is Microsoft's proprietary format, so a non-Microsoft renderer cannot guarantee a pixel-exact match. Single-page flyers, certificates and simple newsletters generally render cleanly. Documents that lean on unusual fonts, heavy layering or externally linked images are the ones most likely to shift, because fonts that were not embedded in the .pub get substituted with the closest available match. Spot-check anything complex, and if you need a print-exact result, export it from Publisher itself while you still can.

Why does my page have a white background instead of a transparent one?

Because JPG has no alpha channel at all — the format simply cannot store transparency. The page background is rendered as solid white, which matches how the publication would print. If you need transparency preserved, use Publisher to PNG instead, which keeps an alpha channel.

Should I convert to JPG or PNG?

Choose by page content. JPG is smaller for pages dominated by photographs and gradients, and it is the safest format for email and older content systems. PNG is lossless, keeps transparency, and renders sharp black text and flat colour blocks without any ringing — usually the better choice for a typical Publisher flyer or certificate. If you want a modern format that is smaller than both, Publisher to WebP is worth comparing.

The JPG is still too large to email — what should I change?

Reduce pixel dimensions first, quality second. A 2550 × 3300 page is far larger than most email or upload targets need; setting "Image resolution" to 1080p or applying a Resolution Percentage typically cuts file size by a large factor with no visible loss at normal viewing size. If you need to hit an exact byte ceiling, use the "Specific file size" control, or run the finished image through Compress JPG.

How is my Publisher file handled, and is it kept private?

Files are uploaded over an encrypted connection, processed on our servers, and deleted automatically after a few hours — no sign-up, no watermark, never shared or made public. For very large publications the practical limit is upload time rather than the page count.