Read Code128 Barcode using PDF.co and Postman

Step 1: Setup Postman

First, open the Postman app and click on the PDF.co Postman Collection . If you haven’t set up your PDF.co Postman Collection yet, you can check out our step-by-step guide.

Step 2: Barcode Reader Web API Collection

Next, expand the Barcode Reader folder and choose the Post/barcode/read/from/url . The Barcode Reader API can read all popular barcode types like QR Code, Code 128, EAN, Datamatrix, PDF417, GS1, and more.

Step 3: Barcode Reader Configuration

Now, let’s go over the /barcode/read/from/url endpoint’s parameters.

• In the url param, type the required URL from the source file.
• In the types param, type in Code128 because we only want to decode the value for this type of barcode. You can add other barcode types separated by comma.
• In the pages param, you can specify the page number(s) or page range(s) that you want the reader to go over. Let’s leave the default value to 0 for page 1.
• The encrypt param is optional. You can set the value to true to enable the output file encryption.
• The async is recommended when you are working with large files. You can set it to true or false.

Barcode Reader Web API cURL Code Snippet

curl --location --request POST 'https://api.pdf.co/v1/barcode/read/from/url' \
 --header 'x-api-key: your-api-key' \
 --header 'Content-Type: application/json' \ 
--data-raw '{
 "url": "https://bytescout-com.s3-us-west-2.amazonaws.com/files/demo-files/cloud-api/barcode-reader/sample.pdf", 
"types": "Code128",
 "pages": "0", 
"encrypt": false, 
"async": false
 }'

You can now click on the Send button to see the result.

Step 4: Barcode Reader Result

Great! The Barcode Reader Web API successfully decoded the Code128 barcode. You can see the value, url, and type name in the result body.