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.IX Title "PDF::API2::Resource::XObject::Form::BarCode::qrcode 3pm"
.TH PDF::API2::Resource::XObject::Form::BarCode::qrcode 3pm "2023-09-29" "perl v5.36.0" "User Contributed Perl Documentation"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
.\" way too many mistakes in technical documents.
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.SH "NAME"
PDF::API2::Resource::XObject::Form::BarCode::qrcode \- Generate QR codes
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
.Vb 1
\&    use PDF::API2;
\&
\&    my $pdf = PDF::API2\->new();
\&    my $page = $pdf\->page();
\&
\&    # Create a QR Code object
\&    my $barcode = $pdf\->barcode(\*(Aqqr\*(Aq, \*(AqThis is a test\*(Aq);
\&
\&    # Calculate the scale needed for a desired size (72pt / inch)
\&    my $desired_inches = 2;
\&    my $scale = $desired_inches * 72 / $barcode\->width();
\&
\&    # Place the QR Code one inch (72pt) from the bottom left corner
\&    $page\->object($barcode, 72, 72, $scale);
\&
\&    $pdf\->save(\*(Aqqr_test.pdf\*(Aq);
.Ve
.SH "REQUIREMENTS"
.IX Header "REQUIREMENTS"
Text::QRCode is used to encode \s-1QR\s0 codes.
.SH "OPTIONS"
.IX Header "OPTIONS"
.Vb 1
\&    my $barcode = $pdf\->barcode(\*(Aqqr\*(Aq, $value, %options);
.Ve
.PP
The following standard barcode options are supported, as described in
\&\*(L"barcode\*(R" in \s-1PDF::API2\s0:
.IP "\(bu" 4
bar_width (default: 1; unit is points)
.IP "\(bu" 4
bar_height (default: bar width)
.IP "\(bu" 4
quiet_zone (default: 4x bar width)
.IP "\(bu" 4
color (default: black)
.PP
The following options are specific to \s-1QR\s0 codes:
.IP "\(bu" 4
error_correction (default: L)
.Sp
The \s-1QR\s0 Code Error Correction Level.  Higher levels of error correction generate
larger bar codes but remain scannable when parts of the code are damaged or
obscured.
.Sp
In increasing order of error correction, the possible values are:
.RS 4
.IP "\(bu" 4
L (7%)
.IP "\(bu" 4
M (15%)
.IP "\(bu" 4
Q (25%)
.IP "\(bu" 4
H (30%)
.RE
.RS 4
.RE
.IP "\(bu" 4
version (default: 0)
.Sp
If you need a specific version of \s-1QR\s0 Code, enter it here.  Otherwise, the
minimum version will be used that can support the encoded value.
.IP "\(bu" 4
mode (default: 8\-bit)
.Sp
You can generate smaller \s-1QR\s0 codes if you're using a restricted character set:
.RS 4
.IP "\(bu" 4
8\-bit (typically the \s-1ISO\-8859\-1\s0 character set)
.IP "\(bu" 4
kanji
.IP "\(bu" 4
alphanumeric (digits, uppercase letters, space, or \f(CW\*(C`$ % * + \- . / :\*(C'\fR)
.IP "\(bu" 4
numeric (digits)
.RE
.RS 4
.RE
.IP "\(bu" 4
case_sensitive (default: 1)
.Sp
Whether 8\-bit characters should be treated in a case-sensitive manner.