KEY to PDFA Converter

Convert KEY to PDFA online for free. Fast, secure, and high-quality conversion with no sign-up or software required.

Free to useNo file stored beyond 1 hourEncrypted over TLS 1.2/1.3No watermarks

or drag and drop files here

Maximum file size is 1GB

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How it works

Three steps to your converted file

Everything happens in your browser tab - upload, pick a format, download. The heavy lifting runs on our servers.

Upload your file

Drag and drop, click to browse, or paste a URL. Batches take up to 20 files at once - 230+ input formats across video, audio, image, document, and archive types.

Choose an output format

Pick from over a hundred output formats. Filter by category or search by name - every option is open to everyone, no account needed.

Convert & download

Hit Convert and grab your download link moments later. Originals are erased when the job completes; results are cleared within about an hour.

What is a KEY file?

A KEY file is a presentation document created by Apple Keynote, part of the iWork productivity suite. Technically, the format has evolved through two primary iterations: a package directory (bundle) containing XML data and media assets (Keynote '09), and a single-file Zipped archive using Protocol Buffers (Protobuf) for efficient serialization (Keynote 2013 onwards). It utilizes a proprietary schema to store slide geometry, animations, and media, distinct from the Office Open XML standard.

How to open a KEY file

Native access is exclusive to macOS, iOS, and iPadOS devices via the Apple Keynote application. Users on Windows or Linux can view and edit these files via iCloud Keynote in a web browser. Conversion to PDF or PPTX is often required for offline viewing on non-Apple systems. LibreOffice offers limited import capabilities for older version 09 files but struggles with modern Protobuf-based KEY files.

KEY Technical Info

Full Name: Keynote Presentation
Developed By: Apple Inc.
Initial Release: 2003
MIME Type: application/x-iwork-keynote-sffkey

What is a PDF/A file?

PDF/A is an ISO-standardized (ISO 19005) variant of the PDF format designed specifically for long-term digital archiving. It embeds all fonts, color profiles, and metadata directly inside the file and prohibits external dependencies, encryption, and JavaScript, ensuring the document will render identically decades from now regardless of which software or fonts are available on the viewing system. It's widely required for legal, government, and institutional record-keeping.

How to open a PDF/A file

PDF/A files open in any standard PDF viewer, including Adobe Acrobat Reader, Apple Preview, and built-in browser PDF viewers, since the format is fully backward-compatible with regular PDF readers. Dedicated archival software such as Adobe Acrobat Pro can also validate that a file meets PDF/A compliance.

PDFA Technical Info

Full Name: PDF for Archiving
Developed By: ISO / AIIM
Initial Release: 2005
MIME Type: application/pdf

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Why RunConvert

The fastest way to convert any file

Purpose-built for speed, privacy, and breadth of format support.

Convert KEY to PDFA in seconds

Every KEY to PDFA conversion runs on our servers, so your device stays fast and the output quality stays intact.

Fast, cloud-powered

No queue, no waiting. Files are processed on high-performance servers and returned in seconds, even for large files.

Secure & private

Encrypted in transit and never shared with anyone. Uploads are erased the moment your job completes, and results shortly after.

Free - no account needed

Convert without creating an account - no credit card, no trial clock. Sign in only if you want history and higher daily limits.

Developer API

Convert KEY to PDFA via API

Automate KEY to PDFA conversions in three steps: create a job, upload your file, then poll for the result.

# 1. Create job
curl -X POST https://api.runconvert.com/v3/jobs \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "tag": "key-to-pdfa",
    "tasks": {
      "upload-file": {
        "operation": "import/upload"
      },
      "convert": {
        "operation": "convert",
        "input": "upload-file",
        "output_format": "pdfa"
      },
      "export-result": {
        "operation": "export/url",
        "input": "convert"
      }
    }
  }'

# 2. Upload your file (use upload_url from the response)
curl -X PUT "$UPLOAD_URL" --upload-file input.key

# 3. Poll for result
curl https://api.runconvert.com/v3/jobs/$JOB_ID?include=tasks \
  -H "Authorization: Bearer YOUR_API_KEY"

Replace YOUR_API_KEY with your RunConvert API key. Get your free API key at runconvert.com/api.