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PowerPoint PPTX to JPEG converter

PPTX → JPG produces a photo-style JPEG of each slide, which is the format most upload forms and old CMSs accept, at the cost of soft edges on text.

  • Converted with Office engine → Image engine · input deleted within 24 h
  • Free: 5 conversions a day · 5 MB each
  • Higher limits →

From real runs

What you get — and what changes

  • Slide count Kept

    Two slides in, two JPEGs out (sample-page-1.jpg and sample-page-2.jpg) inside one ZIP.

  • Text edges Changed

    JPEG at quality 90 leaves faint ringing around small text and thin table borders that the PNG route does not have.

  • File size Changed

    The JPEGs were 44,437 and 96,557 bytes, slightly larger than the PNGs of the same slides because flat slide art compresses better losslessly.

  • Colour Changed

    Solid brand fills stay the same colour but flat areas can show light blocking at lower quality settings; chroma is subsampled.

  • Transparency Lost

    JPEG has no alpha; slides are rendered on their own background and transparent=true has no effect on this target.

  • Fonts Changed

    Microsoft fonts named in the deck are replaced by Liberation and Noto families before rendering.

  • Notes, animations, media Lost

    Only the final state of each slide canvas is rendered.

Sample conversions

Two-slide board update

Input
sample.pptx, 29,145 bytes, 16:9 deck with a table slide and a bullet slide.
Output
118,825-byte ZIP of two 1440×811 JPEGs at quality 90 in 561 ms; readable, with soft halos visible around 11 pt text at 200% zoom.

Thumbnails for a course catalogue

Input
The same deck with {"width":480,"quality":80}.
Output
Two 480×270 JPEGs a few kilobytes each; at that size the ringing is invisible.

A real PowerPoint PPTX → JPEG run

We converted our PowerPoint PPTX sample (28 KB) with Office engine → Image engine on 2026-09-11. It took 561 ms and produced a 116 KB JPEG file, 4.1× larger than the input. The engine raised 2 warnings, listed below.

Input · sample.pptx · 28 KB

Presentation with 2 slides, 0 notes pages, 0 media files

Slides
2
Notes pages
0
Media files
0
Archive parts
40

Output · sample.zip · 116 KB

ZIP with 2 page images (sample-page-1.jpg … sample-page-2.jpg)

Archive parts
2
first
sample-page-1.jpg
  • PDF pages rendered as images; selectable text is not preserved.
  • 2 pages written as one JPG each inside a ZIP.

Options and when to change them

quality
Keep 90 for slides with text; drop to 75–80 for thumbnails where size matters more than crisp letters.
dpi
Raise it for print-sized captures; 144 matches typical screen previews.
max_pages
Render only the first slide for a cover image and skip the ZIP.
background
Only matters if a slide has a transparent background; it sets the fill colour behind it.

Do it yourself

LibreOffice and pdftoppm

bash
soffice --headless --convert-to pdf in.pptx && pdftoppm -jpeg -jpegopt quality=90 -r 144 in.pdf slide

pdftoppm names files slide-1.jpg, slide-2.jpg; fonts must be installed for faithful wrapping.

PowerPoint PPTX to JPEG by API or MCP

The HTTP API and the MCP server run the exact engine this page uses (Office engine → Image engine); the response carries the same warnings the web converter shows. Check support first with GET /api/v1/pairs?from=pptx&to=jpg.

curl
curl -X POST https://filetypeconverters.com/api/v1/convert \
  -H "Authorization: Bearer $FTC_API_KEY" \
  -F "file=@input.pptx" -F "from=pptx" -F "to=jpg" \
  -F 'options={"width":0}' \
  --output output.jpg

Options this engine accepts for PowerPoint PPTX → JPEG

KeyApplies toTypeDefault
widthWriting JPEGnumber0
heightWriting JPEGnumber0
fitWriting JPEGcontain · cover · fillcontain
qualityWriting JPEGnumber90
backgroundWriting JPEGstring#ffffff
stripMetadataWriting JPEGbooleantrue
API reference

When this is the wrong conversion

  • If the slides contain mostly text and flat colour, PPTX → PNG is sharper and often smaller.
  • If you need a single file to share, PPTX → PDF keeps every slide in one searchable document.
  • If the images are for editing in another tool, export PNG; re-saving JPEGs compounds the artefacts.

PowerPoint PPTX to JPEG questions

Is JPG or PNG better for slide images?

PNG for text-heavy slides: it is lossless and, on flat art, smaller. JPG for photo-heavy slides or systems that only accept JPEG uploads.

Why are the JPEGs larger than the PNGs of the same slides?

Slides are mostly flat colour with sharp edges, which PNG compresses very well and JPEG handles poorly. On the sample deck the JPEGs were 44 KB and 97 KB against 42 KB and 74 KB for PNG.

Can I get one JPG per slide without a ZIP?

Only for single-slide decks or with max_pages set to 1. Multi-slide output is always zipped so the files arrive together.

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