ODG to MKV Converter

ODG to MKV Converter

An ODG file is an OpenDocument Graphics drawing — the shapes, connectors and text frames LibreOffice Draw and Apache OpenOffice Draw save as XML inside a ZIP package. MKV (Matroska) is an open, multi-track video container standardised as RFC 9559 in October 2024. Converting between them renders the drawing and holds each page as a silent, motionless frame inside the container — the shape of file an archive, a media server or a desktop editing timeline will take, and the wrong shape for almost anything else.

ODG Format at a Glance

MKV Format at a Glance

How to Convert ODG to MKV

1. Upload Your ODG File: Drag the .odg onto the page or click "+ Add Files". With several files, Merge strategy picks the outcome: "Merge images" writes one MKV holding each drawing in turn, "Video per image" writes one MKV per upload.
2. Set the Image Duration: Under Image Duration → Duration, choose how long each rendered page is held. The default is 5 seconds per frame and the list runs from a 1/60-second single frame up to 10 seconds.
3. Choose the Video Codec and Resolution: Video Codec opens on H.264 and offers the widest list of any container here — H.265, AV1, VP8, VP9, MPEG-1/2/4, DivX, Xvid, WMV1/2, Theora, MJPEG, FLV, H.261/263 and the lossless HuffYUV among them. Video resolution starts on "Keep original"; Fixed Resolutions → 1920 x 1080 is the usual choice for a timeline.
4. Convert and Download: Click "Convert" and save the MKV. Files are uploaded over an encrypted connection, processed on our servers, and deleted automatically after a few hours. No sign-up, no watermark.

What Actually Happens to the Drawing

The .odg is never treated as a picture. LibreOffice opens it as a Draw document, exports it through Draw's own PDF filter, and the pages of that PDF are rendered at 300 DPI into the frames the encoder receives. An A4 page therefore arrives around 2480 x 3508 pixels, which is why choosing a Video resolution is usually a downscale rather than an enlargement.

Two consequences follow. The vectors stop being vectors at the render step: after that the MKV holds flat pixels, so zooming into the video softens it exactly as enlarging a JPG would, and the individual shapes can no longer be selected or moved. And page count is preserved rather than discarded — a four-page Draw document becomes four held frames inside one clip, in page order.

Frequently Asked Questions

Does converting to MKV keep the drawing editable or scalable?

No. ODG stores editable vector objects; a video frame is a fixed grid of pixels, so the drawing is rendered once and the result is flat. The individual shapes cannot be moved afterwards and the picture cannot be enlarged back into sharpness. Keep the source .odg as your master — nothing turns a rasterized MKV back into Draw objects.

Does the MKV have any motion or audio?

Neither. Each rendered page is shown as a static image for the duration you set, with no panning, zoom or transition between them, and no audio track is written because the source has none. If several pages or files are combined, they play back to back as stills — a slideshow without effects, not an animation.

Is MKV a video codec?

No, and the distinction matters when a player refuses the file. Matroska is an envelope: it carries video, audio, subtitle and attachment tracks but compresses nothing itself. The picture in this conversion is encoded with H.264 by default, and the Video Codec group lets you change that without changing the container. When something cannot open the file, the codec inside is as likely to be the cause as the wrapper.

What happens to a multi-page Draw document?

Every drawing page becomes its own held frame inside the same MKV, in page order, each shown for the Image Duration. A four-page document at the 5-second default therefore runs 20 seconds. If you want one file per page instead, save the pages as separate .odg files in LibreOffice Draw and set Merge strategy to "Video per image".

Will the MKV play in my browser or on my phone?

Often not directly. Matroska is not one of the standard HTML5 video types, so most browsers and phones will not open it without help, while desktop players such as VLC, MPV, Kodi and Plex handle it without complaint. That is a property of the container rather than of this conversion. For something that plays essentially everywhere, ODG to MP4 is the better target.

Why does MKV offer so many codecs, and does it matter here?

Because Matroska was designed to carry anything, and the page reflects that. For a still drawing it matters less than usual: H.264 encodes an unchanging frame down to almost nothing and plays in every desktop tool. The exotic entries earn their place only when a specific pipeline demands them — HuffYUV for a lossless intermediate, WMV1 for an ancient Windows workflow, Theora for a royalty-free chain.

Why convert a drawing to MKV rather than to a picture?

Usually you should not. A diagram is a static graphic, and an image target is smaller, sharper and faster to produce — ODG to PNG is the direct route. MKV makes sense when the destination is specifically a Matroska pipeline: a media server library, a multi-track archive, or an editor that lists MKV among its accepted ingest formats.

How are my uploaded ODG files handled?

Your file is uploaded over an encrypted connection, rendered and encoded on our servers, and deleted automatically a few hours later along with the MKV it produced. Nothing is shared, published or made public, no account is required, and no watermark is applied. The main practical limit is upload size and time rather than anything about the drawing itself.