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Supports: PUB
If you are converting a Microsoft Publisher (.pub) file to MKV, it helps to know what actually comes out: each page is rendered to a still image and held on screen as a motionless frame, producing a silent, slideshow-style video — not an animated "movie" of your publication. That is genuinely useful when a screen or signage player only accepts video. But if your real goal is to keep your publications openable after Microsoft retires Publisher on October 1, 2026, a PDF is almost always the better target. The short version: convert to MKV only when the destination needs a video file; convert to PDF when you need to read, archive, or share the document.
| Property | MKV video (this tool) | PDF (Publisher to PDF) |
|---|---|---|
| What each page becomes | A still frame shown for a set duration | A selectable, fixed-layout page |
| Has motion / audio | No — silent, no animation | No — static document |
| Best for | Digital signage, screens/players that only loop video | Reading, archiving, emailing, printing |
| Text stays selectable | No (pages are rasterized to images) | Yes |
| Microsoft's recommended rescue format | No | Yes (PDF for viewing, Word for editing) |
| Container released | Matroska, 2002 (RFC 9559, 2024) | PDF, 1993 (ISO 32000) |
| Default video codec here | H.264 | n/a |
| File size for a few pages | Larger (full-frame raster video) | Small |
.mkv clips but will not open documents..pub converter actually want..pub file onto the page or click "+ Add Files" to browse. You can queue several Publisher files at once.No. A .pub file has no animation, so the conversion renders each page to a still image and holds it as a motionless frame for the duration you set. The result is a silent, slideshow-style video inside an MKV container, not a movie. If you only want a flat picture of each page, Publisher to PNG is more direct, and for a readable document Publisher to PDF is better.
Because there is nothing to play. A Publisher document carries no audio track, so the MKV is created as video-only. The default video codec for MKV here is H.264, which plays in VLC, modern browsers, and most desktop players. If you need narration or music, add it afterward in a video editor.
Only if your destination genuinely needs a video file. Microsoft has confirmed that the perpetual version of Publisher will no longer be supported after October 1, 2026, and recommends converting .pub files beforehand — but it suggests PDF for viewing and Word for editing, not video. For keeping your publications openable and shareable, Publisher to PDF is the right rescue path; MKV is a niche choice for screens that only accept video.
For most screens and players, MP4 is the more widely compatible choice, so consider Publisher to MP4 if you are unsure. Pick MKV when a specific player, signage system, or library prefers the Matroska container — first published in 2002 and standardized as RFC 9559 in 2024 — or when you may later add multiple subtitle or audio tracks, which Matroska handles natively.
.pub is Microsoft's proprietary desktop-publishing format, so non-Microsoft renderers cannot reproduce it perfectly. In our testing, simple single-page flyers and certificates render cleanly, while documents with unusual fonts, heavy layering, or externally linked images are more likely to shift or substitute elements — fonts that are not embedded in the file get the closest available match. Spot-check complex publications, and for a print-exact result export from Publisher itself while you still can.
You control timing with the "Duration" setting (5 seconds per frame by default) — raise it for pages people need to read, or lower it for a quicker page-flip. If frames look soft when scaled up, re-render at a higher "Preset Resolutions" setting rather than enlarging the finished MKV, because each frame is a fixed-pixel raster image and stretching it only blurs existing pixels.
Yes. Files are uploaded over an encrypted connection, processed on our servers, and deleted automatically a few hours after conversion — 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 itself.