Nicely crafted paper pattern, although a bit on the large side (500x593px).
Source Blaq Annabiosis
Made by distorting a simple pattern using the 'sin waves' plugin for Paint.net and vectorising in Vector Magic
Source Firkin
Zero CC tillable hard cover red book with X shape marks. Scanned and made by me.
Source Sojan Janso
Sort of like the Photoshop transparent background, but better!
Source Alex Parker
From a drawing in 'At home', J. Sowerby, J. Crane and T. Frederick, 1881.
Source Firkin
It’s okay to be square! A nice light gray pattern with random squares.
Source Waseem Dahman
The classic subtle pattern. Sort of wall/brick looking. Or moon-looking?
Source Joel Klein
Neat little photography icon pattern.
Source Hossam Elbialy
You can never get enough of these tiny pixel patterns with sharp lines.
Source Designova
Formed by heavily distorting part of a an image of a fish uploaded to Pixabay by GLady
Source Firkin
This pattern comes in orange, and it looks as if it is "made of glass".
Source V. Hartikainen
Prepared mostly as a raster in Paint.net and vectorised.
Source Firkin
Snap! It’s a pattern, and it’s not grayscale! Of course you can always change the color in Photoshop.
Source Atle Mo
A seamless pattern formed from a square tile. The tile can be retrieved by selecting the rectangle in Inkscape and using shift-alt-i.
Source Firkin
The classic notebook paper with horizontal stripes.
Source Are Sundnes
Background pattern made in "Grunge-Like" style. Available in both SVG and JPG formats. Edit to your needs then click the download button.
Source V. Hartikainen
The tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin