Intelligent Table Extraction

Note：Before learning how to use different functions, we recommend that read the Request Workflow to know a basic PDF processing process. When using different functions, you can set their own special parameters when uploading files. Other basic steps are consistent.

Intelligent Table Extraction:

 {    
   "lang": "auto" ,  
 }

Needed Parameters

lang：Supported types and definitions

• auto - Automatic classification language
• english - English
• chinese - Simplified Chinese
• chinese_tra - Traditional Chinese
• korean - Korean
• japanese - Japanese
• latin - Latin
• devanagari - Sanskrit alphabet

Example

1. Authentication

   You need to replace and with accessToken in the publicKey and secretKey authentication getback values you get from the console.

   curl

   curl --location --request POST 'https://api-server.compdf.com/server/v1/oauth/token' \
   --header 'Content-Type: application/json' \
   --data-raw '{
       "publicKey": "publicKey",
       "secretKey": "secretKey"
   }'

   java

    import java.io.*;
    import okhttp3.*;
    public class main {
      public static void main(String []args) throws IOException{
        OkHttpClient client = new OkHttpClient().newBuilder()
          .build();
        MediaType mediaType = MediaType.parse("text/plain");
        RequestBody body = RequestBody.create(mediaType, "{\n    \"publicKey\": \"{{public_key}}\",\n    \"secretKey\": \"{{secret_key}}\"\n}");
        Request request = new Request.Builder()
          .url("https://api-server.compdf.com/server/v1/oauth/token")
          .method("POST", body)
          .build();
        Response response = client.newCall(request).execute();
      }
    }

2. Create Task

   You need to replace with the accessToken which was obtained from the previous step, and replace with the language type you want to display the error information. After replacing them, you will get the taskId in the response data.

   curl

    curl --location --request GET 'https://api-server.compdf.com/server/v1/task/documentAI/tableRec' \
    --header 'Authorization: Bearer accessToken'

   java

    import java.io.*;
    import okhttp3.*;
    public class main {
      public static void main(String []args) throws IOException{
        OkHttpClient client = new OkHttpClient().newBuilder()
          .build();
        MediaType mediaType = MediaType.parse("text/plain");
        RequestBody body = RequestBody.create(mediaType, "");
        Request request = new Request.Builder()
          .url("https://api-server.compdf.com/server/v1/task/documentAI/tableRec?language={{language}}")
          .method("GET", body)
          .addHeader("Authorization", "Bearer {{accessToken}}")
          .build();
        Response response = client.newCall(request).execute();
      }
    }

3. Upload Files

   Replace with the file you want to convert, with the taskId obtained in the previous step, with the language type you want to display the error information, and with the accessToken obtained in the first step.

   -Supported image formats: jpg,jpeg,png,bmp

   curl

    curl --location --request POST 'https://api-server.compdf.com/server/v1/file/upload' \
    --header 'Authorization: Bearer accessToken' \
    --form 'file=@"test.pdf"' \
    --form 'taskId="taskId"' \
    --form 'password=""' \
    --form 'parameter="{ \"lang\": \"auto\" }"'

   java

    import java.io.*;
    import okhttp3.*;
    public class main {
      public static void main(String []args) throws IOException{
        OkHttpClient client = new OkHttpClient().newBuilder()
          .build();
        MediaType mediaType = MediaType.parse("text/plain");
        RequestBody body = new MultipartBody.Builder().setType(MultipartBody.FORM)
          .addFormDataPart("file","{{file}}",
                           RequestBody.create(MediaType.parse("application/octet-stream"),
                                              new File("<file>")))
          .addFormDataPart("taskId","{{taskId}}")
          .addFormDataPart("language","{{language}}")
          .addFormDataPart("parameter","{    \"lang\": \"auto\"    }")
          .build();
        Request request = new Request.Builder()
          .url("https://api-server.compdf.com/server/v1/file/upload")
          .method("POST", body)
          .addHeader("Authorization", "Bearer {{accessToken}}")
          .build();
        Response response = client.newCall(request).execute();
      }
    }

4. Process Files

   Replace with the taskId you obtained from the Create task, and with the accessToken obtained in the first step, and replace with the language type you want to display the error information.

   curl

    curl --location -g --request GET 'https://api-server.compdf.com/server/v1/execute/start?taskId=taskId' \
    --header 'Authorization: Bearer accessToken'

   java

    import java.io.*;
    import okhttp3.*;
    public class main {
     public static void main(String []args) throws IOException{
       OkHttpClient client = new OkHttpClient().newBuilder()
         .build();
       MediaType mediaType = MediaType.parse("text/plain");
       RequestBody body = RequestBody.create(mediaType, "");
       Request request = new Request.Builder()
         .url("https://api-server.compdf.com/server/v1/execute/start?taskId={{taskId}}&language={{language}}")
         .method("GET", body)
         .addHeader("Authorization", "Bearer {{accessToken}}")
         .build();
       Response response = client.newCall(request).execute();
     }
    }

5. Get Task Information

   Replace with you from Create the task obtained in the taskId, replaced by access_token obtained in the first step.

   curl

    curl --location -g --request GET 'https://api-server.compdf.com/server/v1/task/taskInfo?taskId=taskId' \
    --header 'Authorization: Bearer accessToken'

   java

    import java.io.*;
    import okhttp3.*;
    public class main {
      public static void main(String []args) throws IOException{
        OkHttpClient client = new OkHttpClient().newBuilder()
          .build();
        MediaType mediaType = MediaType.parse("text/plain");
        RequestBody body = RequestBody.create(mediaType, "");
        Request request = new Request.Builder()
          .url("https://api-server.compdf.com/server/v1/task/taskInfo?taskId={{taskId}}")
          .method("GET", body)
          .addHeader("Authorization", "Bearer {{accessToken}}")
          .build();
        Response response = client.newCall(request).execute();
      }
    }

Result

File Type	Description
.JSON	Form Recognition results

Content

Parameter	Description
cost	time spent on form identification
type	type of form
angle	The angle at which the form is rotated
width	width of the form
height	height of the form
rows	number of rows in the form
cols	Number of columns in the form
position	The rectangular box position of the form
height_of_rows	height of each row of the form
width_of_cols	width of each column of the form
table_cells	information about all cells in the form
table_cells: start_row	The start row of a cell
table_cells: end_row	The end row of a cell
table_cells: start_col	The start column of a cell
table_cells: end_col	The end column of a cell
table_cells: text	Text in cells
table_cells: position	Rectangular box position information for cells
table_cells: lines	The text lines included in the cell
table_cells: lines: text	The text line
table_cells: lines: score	The score identified by the text line
table_cells: lines: position	text line position information

{
  "cost": 7566,
  "json_items": [
    {
      "type": "table_with_line",
      "angle": 0.0,
      "width": 488,
      "height": 191,
      "rows": 4,
      "cols": 4,
      "position": [
        114,
        657,
        602,
        657,
        602,
        848,
        114,
        848
      ],
      "height_of_rows": [
        65,
        30,
        31,
        36
      ],
      "width_of_cols": [
        122,
        122,
        118,
        122
      ],
      "table_cells": [
        {
          "start_row": 1,
          "end_row": 1,
          "start_col": 1,
          "end_col": 1,
          "text": "",
          "position": [
            2,
            2,
            124,
            2,
            124,
            67,
            2,
            67
          ],
          "lines": []
        },
        {
          "start_row": 2,
          "end_row": 2,
          "start_col": 1,
          "end_col": 1,
          "text": "Absorbed",
          "position": [
            2,
            64,
            125,
            64,
            125,
            95,
            2,
            95
          ],
          "lines": [
            {
              "text": "Absorbed",
              "score": 1.0,
              "position": [
                29,
                65,
                99,
                65,
                99,
                88,
                29,
                88
              ]
            }
          ]
        }
      ]
    }
  ],
  "html_items": [
    "<table border=\ "1\" width='488px' height='191px'>\n
  <tr>
    <th width='122px' height='65px'></th>
    <th width='122px' height='65px' style=\ "white-space: pre-line\">Absorbed</th>
    <th width='118px' height='65px' style=\ "white-space: pre-line\">Neuter</th>
    <th width='122px' height='65px' style=\ "white-space: pre-line\">Fatigue</th>
  </tr>\n
  <tr>
    <th width='122px' height='30px' style=\ "white-space: pre-line\">Absorbed</th>
    <th width='122px' height='30px'>
    </th>
    <th width='118px' height='30px' style=\ "white-space: pre-line\">2</th>
    <th width='122px' height='30px'>
    </th>
  </tr>\n
  <tr>
    <th width='122px' height='31px' style=\ "white-space: pre-line\">Neuter</th>
    <th width='122px' height='31px'>
    </th>
    <th width='118px' height='31px'>
    </th>
    <th width='122px' height='31px'>
    </th>
  </tr>\n
  <tr>
    <th width='122px' height='36px' style=\ "white-space: pre-line\">Fatigue</th>
    <th width='122px' height='36px'>
    </th>
    <th width='118px' height='36px'>
    </th>
    <th width='122px' height='36px' style=\ "white-space: pre-line\">8</th>\t</tr>\n</table>", "
<table border=\ "1\" width='489px' height='166px'>\n
  <tr>
    <th width='123px' height='61px' style=\ "white-space: pre-line\">Expression</th>
    <th width='117px' height='61px' style=\ "white-space: pre-line\">Image Num</th>
    <th width='118px' height='61px' style=\ "white-space: pre-line\">Correct</th>
    <th width='125px' height='61px' style=\ "white-space: pre-line\">Recognition Rate</th>
  </tr>\n
  <tr>
    <th width='123px' height='31px' style=\ "white-space: pre-line\">Absorbed</th>
    <th width='117px' height='31px' style=\ "white-space: pre-line\">9</th>
    <th width='118px' height='31px' style=\ "white-space: pre-line\">7</th>
    <th width='125px' height='31px' style=\ "white-space: pre-line\">77.8%</th>
  </tr>\n
  <tr>
    <th width='123px' height='30px' style=\ "white-space: pre-line\">Neuter</th>
    <th width='117px' height='30px' style=\ "white-space: pre-line\">9</th>
    <th width='118px' height='30px'>
    </th>
    <th width='125px' height='30px' style=\ "white-space: pre-line\">55.6%</th>
  </tr>\n
  <tr>
    <th width='123px' height='31px' style=\ "white-space: pre-line\">Fatigue</th>
    <th width='117px' height='31px' style=\ "white-space: pre-line\">9</th>
    <th width='118px' height='31px'>
    </th>
    <th width='125px' height='31px' style=\ "white-space: pre-line\">88.9%</th>
  </tr>\n
  <tr>
    <th width='483px' height='33px' colspan=\ "4\" style=\ "white-space: pre-line\">Average recognition rate: 74.1%</th>\t</tr>\n</table>"
  ]
}