ODP to JPG Converter

Convert ODP to JPG: What This Tutorial Covers

This walkthrough turns an OpenDocument Presentation — the .odp file LibreOffice Impress and Apache OpenOffice Impress save by default — into flat JPG pictures, one image per slide. It is for people who need slide thumbnails, previews for a web page or a CMS, or artwork for a platform that only accepts photos. Two controls on the page decide whether you get a crisp image or a blurry one, and they are easy to confuse, so most of this page is spent on them.

How to Convert ODP to JPG

1. Upload Your ODP File: Drag the .odp onto the page or click "+ Add Files". You can queue several presentations and convert them with the same settings; every slide in every deck is rendered separately.
2. Set Conversion Quality: This dropdown is labelled "Conversion Quality" but it is really the render resolution in DPI, and it is the setting that decides how many pixels each slide gets. It defaults to 300 DPI; the full list runs 72, 96, 150, 200, 300, 400, 600 and 1200 DPI.
3. Choose a Quality Preset and, If You Need It, a Background Colour: Under Image Compression the Quality Preset defaults to "Very High (Recommended)". Under Image Transparency the Colour dropdown defaults to White, which is what fills any see-through area of a slide, since JPG cannot store transparency.
4. Convert and Download: Click "Convert". A one-slide deck gives you one JPG; anything longer gives you a file per slide plus a "Download all (ZIP)" button. No sign-up, no watermark.

Walk-through: Conversion Quality (DPI) vs Image Resolution

These are two different controls that both change the pixel count, and picking the wrong one is the most common reason a slide comes out soft.

Conversion Quality is applied first. The deck is laid out at its real physical slide size, then rasterised at the DPI you choose, so the arithmetic is simply slide size in inches × DPI. LibreOffice's default widescreen slide is 28 × 15.75 cm (about 11.02 × 6.20 in), which gives:

The 72, 150 and 300 DPI rows were rendered and measured; the rest follow the same inches × DPI rule. If your deck uses a 4:3 or a custom slide size, substitute your own dimensions.

Image resolution is applied afterwards and resamples that render. It defaults to "Keep original", meaning whatever the DPI produced. Change it only when the output has to land on an exact pixel budget:

• Preset Resolutions sets the height only — the width follows your slide's aspect ratio — so a 16:9 slide at the 1080p preset comes out 1920 × 1080 only if the slide really is 16:9.
• Width (Keep aspect ratio) or Height (Keep aspect ratio) is the right choice for a CMS that wants, say, exactly 1200 px wide.
• Width x Height forces both numbers and will distort a slide that does not match that ratio.
• Resolution Percentage scales the render by a fraction, which is the quickest way to halve a 300 DPI output without dropping to 150 DPI and re-rendering the text.

The Quality Preset is a third, independent lever — it sets the JPEG quality number, not the pixel count:

If you would rather aim at a byte budget than a quality number, switch Image Compression to "Specific file size", type a size, and leave Auto Scale on so the converter is allowed to reduce dimensions when quality alone cannot get there.

Common Errors and How to Fix Them

• "Slide text has faint halos around the letters" — that is JPEG ringing. JPEG was designed for photographs and struggles with the hard black-on-white edges that slide text is made of. Keep the Quality Preset at "Very High" or "Highest", raise the DPI, or switch to ODP to PNG, which produces no ringing at all — and set its quality preset to Highest if you want a true-colour lossless file, since the other presets run a palette quantiser.
• "Only one image came back and my deck has 20 slides" — check the results list rather than the first thumbnail. Each slide is a separate file; use the "Download all (ZIP)" button and unzip it.
• "The image is enormous" — DPI multiplies both dimensions, so doubling it quadruples the pixel count and roughly quadruples the bytes. Drop to 150 DPI for anything that is only viewed on a screen, or run the result through compress JPG.
• "A font shifted and my line breaks moved" — the deck used a font that was neither embedded in the file nor installed on the render machine, so a substitute was chosen. In Impress, tick File ▸ Properties ▸ Font ▸ "Embed fonts in the document" and re-save before uploading.
• "My animations and transitions are missing" — a JPG is one frozen frame. Builds, motion paths, transitions and any embedded audio or video are dropped, and each slide appears in the state it reaches after every build has played.
• "The background came out white but my slide was transparent" — expected. JPEG has no alpha channel at all, so the transparent area is filled with the Image Transparency colour, which defaults to White. Pick a different colour from that dropdown, or use ODP to PNG if you genuinely need transparency.

When This Doesn't Work

JPG is the wrong target whenever you still need the content, not just a picture of it. Every word in the output is rasterised, so nothing is selectable, searchable or editable and a typo can only be fixed by going back to the deck. If you want one shareable file with real text instead of a folder of pictures, convert to ODP to PDF. If the slides are line art, screenshots or dense tables, PNG is the better raster because it reproduces hard edges without JPEG's ringing. And if the presentation is password-protected, remove the protection in Impress and re-save first — an encrypted ODF package cannot be opened for rendering.

Frequently Asked Questions

Does every slide become its own JPG?

Yes. The deck is rendered slide by slide and each slide is written as an individual JPG, so a twelve-slide presentation returns twelve images, not one long strip and not a contact sheet. When there is more than one output file, the results list gains a "Download all (ZIP)" button so you can take them in a single click, and you can still download any single slide on its own.

Is the text in the JPG selectable or searchable?

No. The output is a flat raster — a photograph of the slide. Titles, bullets, table cells and chart labels are all painted as pixels, so none of it can be selected, copied, searched or spell-checked, and screen readers see nothing but an image. Keep the .odp as your editable master, and if you need the exported file to keep real text, use ODP to PDF instead.

What does "Conversion Quality" actually change?

It sets the render resolution in dots per inch, which is what decides the pixel dimensions of each slide image. The label is a bit misleading — it is not a JPEG quality slider. That is the separate Quality Preset control under Image Compression. Raising Conversion Quality makes the image bigger and sharper; raising the Quality Preset makes the same-sized image less compressed.

How big is one slide at the default settings?

In our measurement, a 28 × 15.75 cm widescreen slide rendered at the default 300 DPI came out at roughly 3,300 × 1,860 pixels, and writing that render as JPEG at the default "Very High" preset produced a file of roughly 280 KB for a text-and-headline slide. Photo-heavy slides land considerably higher; near-empty slides land far lower. Halving the DPI to 150 roughly quarters both the pixel count and the file size.

Should I pick JPG or PNG for slides?

Pick JPG when the slides are photographic or destined for the web and you care most about file size. Pick PNG when the slides are what most slides actually are — text, tables, charts, logos and line art — because PNG reproduces hard edges without the halos JPEG leaves behind. Note that PNG output is true-colour lossless only on its "Highest" quality preset; the other presets run a palette quantiser, which still avoids ringing but reduces the number of distinct colours. The size penalty is real but often smaller than people expect on flat-coloured slide backgrounds.

What is the "File extension" option for — JPG or JPEG?

It only changes the filename suffix on the files you download. .jpg and .jpeg are the same JPEG format, and the bytes inside are identical either way; the two spellings exist because early Windows filesystems were limited to three-character extensions. Nothing is preselected in that dropdown, so if you specifically need one spelling — some upload forms still reject .jpeg — choose it explicitly before converting.

Can I make the images a specific size in pixels or in kilobytes?

Both, using different controls. For pixels, set Image resolution to Width, Height, or Width x Height and type your numbers. For bytes, switch Image Compression to "Specific file size", enter the target in bytes, kilobytes or megabytes, and leave Auto Scale enabled so the converter may also shrink the dimensions if the quality setting alone cannot reach the target.

Why did my chart or SmartArt-style diagram change slightly?

Charts and diagrams are re-drawn by the rendering engine from the shapes stored in the ODP rather than copied as a picture, so anything that depends on a font metric — label spacing, a legend that just fits, an autofit text box — can shift by a pixel or two. Embedding fonts in the deck removes most of this. If a diagram absolutely must be pixel-identical to what you see in Impress, group and export it from Impress itself and drop the resulting image into the slide before converting.

What happens to my presentation after conversion?

Your .odp is uploaded over an encrypted connection and rendered on our servers — this is a server-side conversion. The upload and the rendered images are deleted automatically a few hours after conversion, no account is required, the images carry no watermark, and your files are never shared or made public.