3 MB PDF sample

A PDF file of exactly 3,145,728 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 3 MB sample, test or dummy PDF file.

sample-pdf-3mb.pdf

3 MB3,145,728 bytes

Download 3 MB PDF

Created in your browser in a few seconds, then checked against the SHA-256 checksum. No sign-up.

Type: application/pdf
SHA-256: 7985f8137dc5b2888777e0b7e8f079455aecb6c71333395202ef4df95fbc2560
Delivery: Created in your browser from static generator assets (how it works).

What is in this file

9 pages of selectable text followed by 1 full-page test-card image stored as uncompressed RGB, which is what gives the file its size. 572 bytes of PDF comment lines before the cross-reference table bring the file to the exact size.

Pages	10
Page size	A4 (595 × 842 pt)
PDF version	1.4
Fonts	Helvetica, Helvetica-Bold (standard, not embedded)
Images	1 uncompressed RGB, 855 × 1211 px
Encrypted	No
Text selectable	Yes

First bytes of the file

The first 64 bytes of sample-pdf-3mb.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 3 MB matters

A 3,145,728-byte file, 3 MB in the binary units that operating systems and upload limits use. It is useful wherever a form, an API gateway, a storage quota or a mail server is configured with a limit of about this size.

All 3 MB sample files

Use this file for

Finding out whether a 1 MB default has been raised
Checking in-browser PDF previews
Verifying text extraction and page counts

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-3mb.pdf
Format	PDF (Portable Document Format)
Extension	.pdf
MIME type	application/pdf
Size	3,145,728 bytes (3 MB)
Kind	Binary
Signature	25 50 44 46 2D
SHA-256	7985f8137dc5b2888777e0b7e8f079455aecb6c71333395202ef4df95fbc2560
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-3mb.pdf     # Linux
shasum -a 256 sample-pdf-3mb.pdf # macOS

On Windows, run Get-FileHash sample-pdf-3mb.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 3 MB?: Yes. It is 3,145,728 bytes, which is 3 MB in the binary units that operating systems and server limits use (1 KB = 1,024 bytes).
What is inside the 3 MB PDF file?: 9 pages of selectable text followed by 1 full-page test-card image stored as uncompressed RGB, which is what gives the file its size. 572 bytes of PDF comment lines before the cross-reference table bring the file to the exact size.
Are the PDFs password-protected or signed?: The sized files are not: they are unencrypted, unsigned and contain no forms, scripts or attachments. The curated list on this page adds a password-protected PDF, with its password stated, and a PDF with fillable form fields.

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