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QR Code Barcodes in LEADTOOLS

The QR Code, or Quick Response Code barcode, is one of the most popular 2D barcodes available today and is used in a variety of industries including commercial tracking applications and mobile phone tagging applications.

Sample Barcode

Symbology
BarcodeSymbology.QR		QR Code barcodes offer more data storage than linear (1D) barcodes: up to 2,953 bytes, 4,296 alphanumeric characters, or 7,089 numeric digits. Additionally, it includes Error Correction Code (ECC) for error-free reading even when a symbol is partially lost or destroyed.

Barcode Support

Data Options	Member
LEADTOOLS Symbology Identifier	BarcodeSymbology.QR
Data Class	QRBarcodeData
Read Options	QRBarcodeReadOptions
Write Options	QRBarcodeWriteOptions

Information for Writing QR Barcodes with LEADTOOLS

The QR standard specifies 40 different sizes for the QR barcode. The maximum data capacity varies, depending on the size of the barcode and its Error Correction level.

The following table contains information for writing 2D QR codes:

Model QRBarcodeSymbolModel	Modules	ECC Level QRBarcodeECCLevel	Data Bits	Numeric	Alphanumeric	Binary	Kanji
1	21x21	L	152	41	25	17	10
M	128	34	20	14	8
Q	104	27	16	11	7
H	72	17	10	7	4
2	25x25	L	272	77	47	32	20
M	224	63	38	26	16
Q	176	48	29	20	12
H	128	34	20	14	8
3	29x29	L	440	127	77	53	32
M	352	101	61	42	26
Q	272	77	47	32	20
H	208	58	35	24	15
4	33x33	L	640	187	114	78	48
M	512	149	90	62	38
Q	384	111	67	46	28
H	288	82	50	34	21
5	37x37	L	864	255	154	106	65
M	688	202	122	84	52
Q	496	144	87	60	37
H	368	106	64	44	27
6	41x41	L	1,088	322	195	134	82
M	864	255	154	106	65
Q	608	178	108	74	45
H	480	139	84	58	36
7	45x45	L	1,248	370	224	154	95
M	992	293	178	122	75
Q	704	207	125	32	20
H	528	154	93	64	39
8	49x49	L	1,552	461	279	192	118
M	1,232	365	221	152	93
Q	880	259	157	108	66
H	688	202	122	84	52
9	53x53	L	1,856	552	335	230	141
M	1,456	432	262	180	111
Q	1,056	312	189	130	80
H	800	235	143	98	60
10	57x57	L	2,192	652	395	271	167
M	1,728	513	311	213	131
Q	1,232	364	221	151	93
H	976	288	174	119	74
11	61x61	L	2,592	772	468	321	198
M	2,032	604	366	251	155
Q	1,440	427	259	177	109
H	1,120	331	200	137	85
12	65x65	L	2,960	883	535	367	226
M	2,320	691	419	287	177
Q	1,648	489	296	203	125
H	1,264	374	227	155	96
13	69x69	L	3,424	1,022	619	425	262
M	2,672	796	483	331	204
Q	1,952	580	352	241	149
H	1,440	427	259	177	109
14	73x73	L	3,688	1,101	667	458	282
M	2,920	871	528	362	223
Q	2,088	621	376	258	159
H	1,576	468	283	194	120
15	77x77	L	4,184	1,250	758	520	320
M	3,320	991	600	412	254
Q	2,360	703	426	292	180
H	1,784	530	321	220	136
16	81x81	L	4,712	1,408	854	586	361
M	3,624	1,082	656	450	277
Q	2,600	775	470	322	198
H	2,024	602	365	250	154
17	85x85	L	5,176	1,548	938	644	397
M	4,056	1,212	734	504	310
Q	2,936	876	531	364	224
H	2,264	674	408	280	173
18	89x89	L	5,768	1,725	1,046	718	442
M	4,056	1,212	734	504	310
Q	3,176	948	574	394	243
H	2,504	746	452	310	191
19	93x93	L	6,360	1,903	1,153	792	488
M	5,016	1,500	909	624	384
Q	3,560	1,063	644	442	272
H	2,728	813	493	338	208
20	97x97	L	6,888	2,061	1,249	858	528
M	5,352	1,600	970	666	410
Q	3,880	1,159	702	482	297
H	3,080	919	557	382	235
21	101x101	L	7,456	2,232	1,352	929	572
M	5,712	1,708	1,035	711	438
Q	4,096	1,224	742	509	314
H	3,248	969	587	403	248
22	105x105	L	8,048	2,409	1,460	1,003	618
M	6,256	1,872	1,134	779	480
Q	4,544	1,358	823	565	348
H	3,536	1,056	640	439	270
23	109x109	L	8,752	2,620	1,588	1,091	672
M	6,880	2,059	1,248	857	528
Q	4,912	1,468	890	611	376
H	3,712	1,108	672	461	284
24	113x113	L	9,392	2,812	1,704	1,171	721
M	7,312	2,188	1,326	911	561
Q	5,312	1,588	963	661	407
H	4,112	1,228	744	511	315
25	117x117	L	10,208	3,057	1,853	1,273	784
M	8,000	2,395	1,451	997	614
Q	5,744	1,718	1,041	715	440
H	4,304	1,286	779	535	330
26	121x121	L	10,960	3,283	1,990	1,367	842
M	8,496	2,544	1,542	1,059	652
Q	6,032	1,804	1,094	751	462
H	4,768	1,452	864	593	365
27	117x117	L	11,744	3,514	2,132	1,465	902
M	9,024	2,701	1,637	1,125	692
Q	6,464	1,933	1,172	805	496
H	5,288	1,581	958	658	405
28	129x129	L	12,248	3,669	2,223	1,528	940
M	9,544	2,857	1,732	1,190	732
Q	6,968	2,085	1,263	868	534
H	5,288	1,581	958	658	405
29	133x133	L	13,048	3,909	2,369	1,628	1,002
M	10,136	3,035	1,839	1,264	778
Q	7,288	2,181	1,322	908	559
H	5,608	1,677	1,016	698	430
30	137x137	L	13,880	4,158	2,520	1,732	1,066
M	10,984	3,289	1,994	1,370	843
Q	7,880	2,358	1,429	982	604
H	5,960	1,677	1,016	698	430
31	141x141	L	14,744	4,417	2,677	1,840	1,132
M	11,640	3,486	12,113	1,452	894
Q	8,264	2,473	1,499	1,030	634
H	6,344	1,897	1,150	790	486
32	145x145	L	15,640	4,686	2,840	1,952	1,201
M	12,328	3,693	2,238	1,538	947
Q	8,920	2,670	1,618	1,112	684
H	6,760	2,022	1,226	842	518
33	149x149	L	16,568	4,965	3,009	2,068	1,273
M	12,328	3,693	2,238	1,538	947
Q	9,368	2,805	1,700	1,168	719
H	7,208	2,157	1,307	898	553
34	153x153	L	17,528	5,253	3,183	2,188	1,273
M	13,800	4,134	2,506	1,722	1,060
Q	9,848	2,949	1,787	1,228	756
H	7,688	2,301	1,394	958	590
35	157x157	L	18,448	5,529	3,351	2,303	1,417
M	14,496	4,343	2,632	1,809	1,113
Q	10,288	3,081	1,867	1,283	790
H	7,888	2,361	1,431	983	605
36	161x161	L	19,472	5,836	3,537	2,431	1,496
M	15,312	4,588	2,780	1,911	1,176
Q	10,832	3,244	1,966	1,351	832
H	8,432	2,524	1,530	1,051	647
37	165x165	L	20,528	6,153	3,729	2,563	1,577
M	15,936	4,775	2,894	1,989	1,224
Q	11,408	3,417	2,071	1,423	876
H	8,768	2,625	1,591	1,093	673
38	169x169	L	21,616	6,497	3,927	2,699	1,661
M	16,816	5,039	3,054	2,099	1,292
Q	12,016	3,599	2,181	1,499	923
H	9,136	2,735	1,658	1,139	701
39	173x173	L	22,496	6,743	4,087	2,809	1,729
M	17,728	5,313	3,220	2,213	1,362
Q	12,656	3,791	2,298	1,579	972
H	9,776	2,927	1,774	1,219	750
40	177x177	L	23,648	7,089	4,296	2,953	1,817
M	18,672	5,596	3,391	2,331	1,435
Q	13,328	3,993	2,420	1,663	1,024
H	10,208	3,057	1,852	1,273	784