100 MB PDF sample

A PDF file of exactly 104,857,600 bytes. It is a valid Portable Document Format file, generated by this site. Compare its checksum and test it with the parser used by your application. Use it wherever you need a 100 MB sample, test or dummy PDF file.

sample-pdf-100mb.pdf

100 MB104,857,600 bytes

Download 100 MB PDF

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Type: application/pdf
SHA-256: 172127256c838ad17a1f4af009745a2e9266cb834caa0049832e77e63c559fc2
Delivery: Created in your browser from static generator assets (how it works).

What is in this file

9 pages of selectable text followed by 35 full-page test-card images stored as uncompressed RGB, which is what gives the file its size. 17,819 bytes of PDF comment lines before the cross-reference table bring the file to the exact size.

Pages	44
Page size	A4 (595 × 842 pt)
PDF version	1.4
Fonts	Helvetica, Helvetica-Bold (standard, not embedded)
Images	35 uncompressed RGB, 840 × 1188 px
Encrypted	No
Text selectable	Yes

First bytes of the file

The first 64 bytes of sample-pdf-100mb.pdf as a hex dump: offset, bytes, then the same bytes as text. The PDF signature is 25 50 44 46 2D.

00000000  25 50 44 46 2d 31 2e 34  0a 25 e2 e3 cf d3 0a 31 |%PDF-1.4.%.....1|
00000010  20 30 20 6f 62 6a 0a 3c  3c 20 2f 54 79 70 65 20 | 0 obj.<< /Type |
00000020  2f 43 61 74 61 6c 6f 67  20 2f 50 61 67 65 73 20 |/Catalog /Pages |
00000030  32 20 30 20 52 20 3e 3e  0a 65 6e 64 6f 62 6a 0a |2 0 R >>.endobj.|

Preview

Creates the file in your browser and shows it here. Nothing large is downloaded from our server.

Where 100 MB matters

A 104,857,600-byte file: the request-body limit of Cloudflare's Free and Pro plans, and the size above which GitHub rejects a file outright.

All 100 MB sample files

Use this file for

Testing email attachment limits
Testing document upload forms and size limits
Checking in-browser PDF previews

Testing notes for PDF

A file cut off before its final "%%EOF" marker usually cannot be opened, which makes PDF a good format for detecting truncated transfers.
PDFs can embed JavaScript and attachments, so upload handlers should scan them rather than trust the extension. The samples here contain neither.

PDF format reference

Technical details

File name	sample-pdf-100mb.pdf
Format	PDF (Portable Document Format)
Extension	.pdf
MIME type	application/pdf
Size	104,857,600 bytes (100 MB)
Kind	Binary
Signature	25 50 44 46 2D
SHA-256	172127256c838ad17a1f4af009745a2e9266cb834caa0049832e77e63c559fc2
Created	2026-10-23
Validation	See the listed size and SHA-256. Small downloads are checked in the browser; verify streamed downloads manually. A hash match does not prove parser compatibility.
Preview	Available on this page
Source	Generated in your browser by this site's generator; not copied from elsewhere
Licence	Free to use, modify and redistribute (terms)
Category	Documents

Check the stated structure and checksum against your application requirements. As with any download, scan the file with your own security tools before opening it. How files are made and checked

Verify your copy

This file is created in your browser, so it has no direct URL for curl or wget. The generator is designed to produce reproducible bytes. After saving, compare the checksum with the SHA-256 value above.

sha256sum sample-pdf-100mb.pdf     # Linux
shasum -a 256 sample-pdf-100mb.pdf # macOS

On Windows, run Get-FileHash sample-pdf-100mb.pdf -Algorithm SHA256 in PowerShell. For scripts and pipelines, save the file once and keep your own copy.

Related files

Questions about this file

Is this file exactly 100 MB?: Yes. It is 104,857,600 bytes, which is 100 MB in the binary units that operating systems and server limits use (1 KB = 1,024 bytes).
What is inside the 100 MB PDF file?: 9 pages of selectable text followed by 35 full-page test-card images stored as uncompressed RGB, which is what gives the file its size. 17,819 bytes of PDF comment lines before the cross-reference table bring the file to the exact size.
Do the sample PDFs contain selectable text?: Yes. Every sample has real text set in the standard Helvetica font, so you can test text extraction and search. The larger files add full-page images to reach their size.

Opening large files

Keep this tab open until your browser reports that the download is complete. Check the saved file size against the byte count on this page; a partial download may not open. For ordinary viewer tests, start with a 5 MB or 10 MB sample. Large samples are stress-test fixtures and may exceed the memory or file-size limits of your viewer.

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