Skip to main content

Photographic Series



Belonging to the ISO 216 standard, the 12L paper size is a unique and often overlooked member of this globally recognized series. This particular size, measuring 89 x 127 mm, is not as commonly used as its A4 or A3 counterparts, yet it holds its own distinctive place within the ISO hierarchy.

Interestingly, the dimensions of the 12L paper size are derived from an aspect ratio of √2:1. This ratio ensures that when a sheet is divided in half along its larger side, each resulting piece retains the original aspect ratio. It's a fascinating mathematical principle that underpins all sizes within the ISO 216 series.

12L paper dimensions


View All Photographic Series

2A046.81 x 66.221189 x 1682119 x 1683370 x 4768
A120.51 x 0.7113 x 181 x 237 x 51
4A066.22 x 93.621682 x 2378168 x 2384768 x 6741
A110.71 x 1.0218 x 262 x 351 x 74
A101.02 x 1.4626 x 373 x 474 x 105
A3+12.95 x 19.02329 x 48333 x 48933 x 1369
A1+23.98 x 35.98609 x 91461 x 911726 x 2591
A0+35.98 x 50.87914 x 129291 x 1292591 x 3662
A64.13 x 5.83105 x 14811 x 15298 x 420
A55.83 x 8.27148 x 21015 x 21420 x 595
A48.27 x 11.69210 x 29721 x 30595 x 842
A311.69 x 16.54297 x 42030 x 42842 x 1191
A91.46 x 2.0537 x 524 x 5105 x 147
A216.54 x 23.39420 x 59442 x 591191 x 1684
A82.05 x 2.9152 x 745 x 7147 x 210
A123.39 x 33.11594 x 84159 x 841684 x 2384
A72.91 x 4.1374 x 1057 x 11210 x 298
A033.11 x 46.81841 x 118984 x 1192384 x 3370

The compact nature of the 12L paper size makes it ideal for specific applications where space efficiency is paramount. For instance, it's frequently utilized in industries such as photography for printing passport-sized photos or small promotional materials.

Despite not being part of any ANSI series - an American standard that includes 'Letter', 'Legal', and 'Tabloid' sizes - the versatility and adaptability of this ISO-standardized paper size cannot be underestimated. Its unique dimensions make it a valuable asset in various professional settings worldwide.

While it may not be as widely recognized as other formats within its family tree, there's no denying that the humble 12L has carved out a niche for itself within global standards. It stands testament to how thoughtful design can cater to specific needs while adhering to internationally accepted norms.

Other Formats in the Photographic Series

Interesting facts about 12L

1: The Origin of 12L Paper

12L paper is part of the ISO A series, which was first introduced in Germany in the 1920s. It was developed to standardize paper sizes and facilitate international communication.

2: Dimensions of 12L Paper

The dimensions of a sheet of 12L paper are 216 mm x 330 mm (8.5 inches x 13 inches). It has an aspect ratio of approximately 1:1.53.

3: Common Uses

12L paper is commonly used for various purposes such as brochures, flyers, newsletters, and booklets. Its size allows for compact yet readable content presentation.

4: Compatibility with Other Sizes

The ISO A series follows a consistent ratio between sizes. For example, two sheets of A3 paper can be combined to form one sheet of A2 paper, and two sheets of A2 can form one sheet of A1. Similarly, four sheets of A3 can create one sheet of the larger B2 size.

5: International Adoption

The ISO A series has been widely adopted globally and is used in many countries outside Europe as well. This standardization ensures compatibility across different printing systems and simplifies document handling.

6: Efficient Use of Resources

The ISO A series aims to minimize waste by utilizing standardized sizes that optimize cutting from larger parent sheets during production. This reduces costs and promotes sustainable practices within the printing industry.

7: Historical Influence on Paper Sizes

Prior to the introduction of the ISO A series, paper sizes varied significantly across different countries and regions. The adoption of standardized sizes like 12L helped streamline printing processes and improve efficiency.

8: Paper Sizes in Relation to Folding

The dimensions of 12L paper make it ideal for folding into thirds, both horizontally and vertically. This allows for easy creation of tri-fold brochures or pamphlets.

9: Compatibility with Envelopes

12L paper fits well into standard #10 envelopes, which are commonly used for business correspondence. This makes it convenient for mailing documents printed on this size of paper.

10: Variations in Naming

In some countries, the ISO A series is referred to by different names. For example, in North America, the closest equivalent to 12L is known as "Letter" size (8.5 inches x 11 inches).