10 MB PPTX sample file

A PPTX file of exactly 10,485,760 bytes. It is a valid PowerPoint presentation (Office Open XML) file, generated for this site and checked with an independent parser.

sample-pptx-10mb.pptx

10 MB10,485,760 bytes

Download 10 MB PPTX

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Type: application/vnd.openxmlformats-officedocument.presentationml.presentation
SHA-256: c684a85b706f472f88afa0eca89d03b2a7ac60c1c2662031adf076a4c9cb7f72
Direct URL: https://sampletestfiles.com/downloads/pptx/sample-pptx-10mb.pptx

What is in this file

A five-slide deck with a title slide, bullets, a table and speaker notes, plus one embedded test-card PNG of 10,451,094 bytes. The image is stored uncompressed and sized so that the presentation is exactly 10,485,760 bytes.

Slides	5
Contents	Title, bullet, picture and table slides, with speaker notes
Embedded image	PNG, 2,137 × 1,629 px
Macros	None
Container	ZIP (Office Open XML)

First bytes of the file

The first 64 bytes of sample-pptx-10mb.pptx as a hex dump: offset, bytes, then the same bytes as text. The PPTX signature is 50 4B 03 04.

00000000  50 4b 03 04 14 00 00 00 08 00 00 00 21 5c 20 37  |PK..........!\ 7|
00000010  1d 4f fa 01 00 00 8b 10 00 00 13 00 00 00 5b 43  |.O............[C|
00000020  6f 6e 74 65 6e 74 5f 54 79 70 65 73 5d 2e 78 6d  |ontent_Types].xm|
00000030  6c cd 98 4d 6f 9b 40 10 86 ef fd 15 88 0b 87 ca  |l..Mo.@.........|

Preview

PPTX files cannot be shown in a browser. Download the file and open it with Microsoft PowerPoint.

Where 10 MB matters

A 10,485,760-byte file: over the default limits of PHP, API Gateway and Spring Boot requests. These are the default limits a file of this size is useful for testing:

System	Limit	Note
Amazon API Gateway	10 MB payload	A 10 MB file in a multipart or base64 body is over the limit.
Spring Boot multipart	10 MB per request by default (max-request-size)	Exceeded once form overhead is added.
PHP	8 MB POST body by default (post_max_size)	Rejected before the script runs.
Amazon S3 multipart upload	5 MiB minimum part size	This file splits into exactly two minimum-sized parts.
Email attachments	Commonly 20 to 25 MB per message	10 MB fits, at about 13.3 MB once encoded.

All 10 MB sample files

Use this file for

Exercising chunked and resumable uploads
Testing presentation uploads in learning and meeting software
Checking slide-to-image or slide-to-PDF conversion

Testing notes for PPTX

Converters differ in font substitution; the same deck can reflow when a font is missing.
Presentation size is dominated by embedded media, so limits tuned for documents are often too small for real decks.

PPTX format reference

Technical details

File name	sample-pptx-10mb.pptx
Format	PPTX (PowerPoint presentation (Office Open XML))
Extension	.pptx
MIME type	application/vnd.openxmlformats-officedocument.presentationml.presentation
Size	10,485,760 bytes (10 MB)
Kind	Binary
Signature	50 4B 03 04
SHA-256	c684a85b706f472f88afa0eca89d03b2a7ac60c1c2662031adf076a4c9cb7f72
Created	2026-10-10
Validation	Exact size, signature bytes and structure checked when the file was generated
Preview	Not available for this format; details only
Source	Generated for this site; not copied from elsewhere
Licence	Free to use, modify and redistribute (terms)
Category	Presentations

Validated for expected format and integrity. As with any download, scan the file with your own security tools before opening it. How files are made and checked

Download from the command line and verify

Fetch the file with curl, then compare its checksum with the SHA-256 value above.

curl -o sample-pptx-10mb.pptx 'https://sampletestfiles.com/downloads/pptx/sample-pptx-10mb.pptx'
sha256sum sample-pptx-10mb.pptx     # Linux
shasum -a 256 sample-pptx-10mb.pptx # macOS

On Windows, run Get-FileHash sample-pptx-10mb.pptx -Algorithm SHA256 in PowerShell. A matching value proves that the download is complete and unaltered.

Related files

Questions about this file

Is this file exactly 10 MB?: Yes. It is 10,485,760 bytes, which is 10 MB in the binary units that operating systems and server limits use (1 KB = 1,024 bytes).
What is inside the 10 MB PPTX file?: A five-slide deck with a title slide, bullets, a table and speaker notes, plus one embedded test-card PNG of 10,451,094 bytes. The image is stored uncompressed and sized so that the presentation is exactly 10,485,760 bytes.
What is on the slides?: Five slides: a title, a bulleted list with speaker notes, a picture, a table and a closing slide.

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