Micro PDF417 Size Setting Instruction

Micro PDF417 Structure

  • W : the width of Micro PDF417 image (including quiet zones).
  • H : the height of Micro PDF417 image (including quiet zones)
  • X : the width of Micro PDF417 narrowest bar.
  • R : the number of rows in Micro PDF417.
  • Y : the row height of Micro PDF417; Y >= 2X.
  • Q : the width of the quiet zone; Q >= X.



Micro QR Code Image Size

There are four Micro PDF417 image sizes based on its column versions, namely one-, two-, three-, and four-column version Micro PDF417, specified in ISO/IEC (24728:2006).


  • C : the number of columns in the data region of Micro PDF417 image; C = 1, 2, 3, 4.



Micro QR Code Image Width

The Micro PDF417 image width, W (measured in pixel), including quiet zones, can be calculated from the following expression:


  • C = 1, 2, W = [ 10 * 2 + 1 + 17C ] X + 2Q
  • C = 3, 4, W = [ 10 * 3 + 1 + 17C ] X + 2Q




Then the minimum value of W can be calculated as follows:


W min = [ 10 * 2 + 1 + 17C ] X + 2Q         //C = 1, Q min = X
          = 38X + 2X
          = 40X         //X = 1
          = 40 pixel



Micro QR Code Image Height

The image height of a Micro PDF417, including quiet zones, is determined by module height and number of rows. It can be calculated from the following expression:


H = R * Y + 2Q


So, the minimum value of H can be calculated as below:


H = R * Y + 2Q           //Y min = 2X, Q min = X
H min = R * 2X + 2 * X           //R min = 11
          = 11 * 2X + 2X
          = 22X + 2X
          = 24X          //X = 1
          = 24 pixel




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