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Postcard Series



Recognized as a popular choice in the realm of paper sizes, the 5x7 inch format holds its own unique appeal. This size, often referred to as A7 in the ISO 216 standard series, is widely utilized across various applications due to its versatile dimensions.

The 5x7 inch format is not part of any ANSI series but aligns with the ISO's A-series. The A-series is an international standard that includes A0 (the largest) down to A10 (the smallest), with each size being half of the one before it when folded parallel to its shorter sides. However, it's important to note that while the 5x7 inch size closely resembles the dimensions of an A7 paper, they are not exactly identical. An actual A7 paper measures approximately 2.9 x 4.1 inches.

5×7 paper dimensions


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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

One fascinating aspect about this particular paper size is its widespread use in photo printing and greeting cards. Its dimensions provide an ideal balance between space for content and portability, making it a preferred choice for these applications.

In marketing materials such as flyers or invitations, a 5x7 inch format offers ample room for compelling visuals and persuasive copy without overwhelming the reader or appearing too bulky.

Moreover, this specific size has found favor within artistic communities too. Artists often opt for this dimension when creating small-scale artworks or prints due to its manageable size and aesthetic proportions.

Whether you're printing photos, crafting marketing materials or creating art pieces - understanding and utilizing the potential of a 5x7 inch paper can significantly enhance your final output.

Other Formats in the Postcard Series

Interesting facts about 5×7

1: The Origin of 5x7 Paper

The size of 5x7 paper, also known as "Index Card" or "A7," originated from the United States. It was initially used for index cards and has since become a popular choice for greeting cards, invitations, and small prints.

2: Aspect Ratio

The aspect ratio of 5x7 paper is 1.4, which means that the width is approximately 1.4 times the height. This aspect ratio is often considered aesthetically pleasing and is commonly used in photography and art prints.

3: International Variations

While the standard size for index cards in the United States is 5x7 inches, other countries may have different dimensions for their index cards. For example, in Europe, A6 (105 x 148 mm) is commonly used as an equivalent to the American index card size.

4: Historical Use in Photography

In traditional photography, a common print size known as "contact print" was made using a negative that measured approximately 5x7 inches. This allowed photographers to create direct positive prints without enlargement.

5: Versatile Usage

The compact size of 5x7 paper makes it versatile for various purposes. It can be easily carried around or mailed due to its convenient dimensions. Additionally, it fits well into standard photo frames without requiring any trimming or resizing.

6: DIY Envelopes

If you enjoy crafting or personalizing your stationery items, you can create custom envelopes using a single sheet of A8 (2.875 x 3.625 inches) paper. This smaller size fits perfectly with 5x7 cards and adds a unique touch to your correspondence.

7: Popular for Art Prints

Artists often prefer 5x7 paper for creating small art prints or postcards. Its compact size allows them to showcase their work while keeping the production costs low, making it an affordable option for both artists and collectors.

8: Wedding Invitations

5x7 paper is a popular choice for wedding invitations due to its elegant proportions and ample space for text and design elements. It provides enough room to include all the necessary details while maintaining a visually appealing layout.

9: Digital Printing Compatibility

The dimensions of 5x7 paper are widely supported by digital printers, making it easy to print professional-quality documents at home or in commercial printing facilities. Its compatibility ensures consistent results across different printing platforms.

10: Environmental Considerations

When choosing 5x7 paper, you can opt for eco-friendly options such as recycled or sustainably sourced papers. Many manufacturers offer environmentally conscious choices that maintain the quality and appearance of traditional papers while reducing their ecological impact.