PDF to JSON OCR API

API ID 14067

Convert any PDF document with or without images into structured JSON output with built-in OCR features of the API. The API is best suited for LLM training and dataset creation.

API Documentation

Endpoints

Request
The "Convert PDF-to-JSON" endpoint is designed to transform PDF documents into structured JSON format, enabling developers and applications to easily extract and manipulate the data contained within these files. This endpoint processes the input PDF by parsing its elements—such as text, images, and metadata—and organizes the extracted information into a JSON object that maintains the context and hierarchy of the original content. Common use cases include transforming PDF reports, invoices, and contracts into a format suitable for integration with web applications, data analysis platforms, or machine learning models, facilitating further data processing and analysis tasks in a streamlined and accessible manner. Turn on OCR forcefully by selecting true for OCR param. By default it is auto.
Endpoint ID: 34500
POST https://zylalabs.com/api/14067/pdf+to+json+ocr+api/34500/convert+pdf-to-json
INPUT PARAMETERS

Convert PDF-to-JSON — Endpoint Features

Object Description
ocr Required true for force OCR, false for no OCR
Request Body Required File Binary

Free test requests remaining: 3 of 3.


INPUT PARAMETERS

ocr
API EXAMPLE RESPONSE
JSON
{
    "success": true,
    "data": {
        "id": "7d0dc6c9-1669-d756-22ca-121a4854ca27",
        "request_id": "a4de4cdb-9f68-4727-9ac1-b974aee01aa1",
        "file_name": "l03fgI9uxGsbBYmWGhzCnQsVaV9N8vX2j1CTiBXl",
        "page_count": 13,
        "total_pages": 13,
        "title": "Sec XI-Sample audit reports.pdf",
        "pages": [
            {
                "page_number": 1,
                "extraction_method": "text",
                "blocks": [
                    {
                        "type": "heading",
                        "level": 1,
                        "text": "1 ) SAMPLE - INDEPENDENT AUDITOR'S REPORT - UNMODIFIED OPINION"
                    },
                    {
                        "type": "paragraph",
                        "text": "Independent Auditor’s Report"
                    },
                    {
                        "type": "heading",
                        "level": 1,
                        "text": "Members of Tribal Council"
                    },
                    {
                        "type": "heading",
                        "level": 1,
                        "text": "8SQRUWK\u00037ULEDO\u0003+RXVLQJ"
                    },
                    {
                        "type": "heading",
                        "level": 1,
                        "text": "8SQRUWK\u000f\u0003$ODVNDS"
                    },
                    {
                        "type": "heading",
                        "level": 1,
                        "text": "Reportrt on the Financial Statements"
                    },
                    {
                        "type": "heading",
                        "level": 1,
                        "text": "We have audited the accompanying financial statements of the governmental activities, each"
                    },
                    {
                        "type": "heading",
                        "level": 1,
                        "text": "major fund and the aggregate remaining fund information of 8SQRUWK 7ULEDO\u00031RUWK +RXVLQJ 87+ as"
                    },
                    {
                        "type": "heading",
                        "level": 1,
                        "text": "of and for the year ended September 30, 20XX, and the related notes to the"
                    },
                    {
                        "type": "heading",
                        "level": 1,
                        "text": "financial statements, which collectively comprise RI\u0003 87+'s basic financial statements as listed in the"
                    },
                    {
                        "type": "heading",
                        "level": 1,
                        "text": "table of contents."
                    },
                    {
                        "type": "paragraph",
                        "text": "Management’s Responsibility for the Financial Statements Management is responsible for the preparation and fair presentation of these financial statements in accordance with accounting principles generally accepted in the United States of America; this includes the design, implementation, and maintenance of internal control relevant to the preparation and fair presentation of financial statements that are free from material misstatement, whether due to fraud or error."
                    },
                    {
                        "type": "paragraph",
                        "text": "Auditor’s Responsibility Our responsibility is to express opinions on these financial statements based on our audit. We conducted our audit in accordance with auditing standards generally accepted in the United States of America and the standards applicable to financial audits contained in Government Auditing Standards, issued by the Comptroller General of the United States. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free from material misstatement."
                    },
                    {
                        "type": "paragraph",
                        "text": "An audit involves performing procedures to obtain audit evidence about the amounts and disclosures in the financial statements. The procedures selected depend on the auditor’s judgment, including the assessment of the risks of material misstatement of the financial statements, whether due to fraud or error. In making those risk assessments, the auditor considers internal control relevant to the entity’s preparation and fair presentation of the financial statements in order to design audit procedures that are appropriate in the circumstances, but not for the purpose of expressing an opinion on the effectiveness of the entity’s internal control. Accordingly, we express no such opinion. An audit also includes evaluating the appropriateness of accounting policies used and the reasonableness of significant accounting estimates made by management, as well as evaluating the overall presentation of the financial statements."
                    },
                    {
                        "type": "paragraph",
                        "text": "We believe that the audit evidence we have obtained is sufficient and appropriate to provide a basis for our audit opinions."
                    }
                ]
            },
            {
                "page_number": 2,
                "extraction_method": "text",
                "blocks": [
                    {
                        "type": "paragraph",
                        "text": "Members of Tribal Council 8SQRUWK\u00037ULEDO\u0003+RXVLQJ Opinions"
                    },
                    {
                        "type": "heading",
                        "level": 1,
                        "text": "In our opinion, the financial statements referred to above present fairly, in all material respects, the"
                    },
                    {
                        "type": "heading",
                        "level": 1,
                        "text": "respective financial position of the governmental activities, each major fund and the aggregate remaining"
                    },
                    {
                        "type": "heading",
                        "level": 1,
                        "text": "fund information of 8SQRUWK\u00037ULEDO +RXVLQJ as of 'HFHPEHU\u0003 \u0016\u0014 , 20XX, and the respective changes"
                    },
                    {
                        "type": "heading",
                        "level": 1,
                        "text": "in financial position for the year then ended in accordance with accounting principles generally"
                    },
                    {
                        "type": "heading",
                        "level": 1,
                        "text": "accepted in the United States of America."
                    },
                    {
                        "type": "paragraph",
                        "text": "Other Matters Required Supplementary Information Management has omitted the Management Discussion and Analysis and required budget to actual schedules that accounting principles generally accepted in the United States of America requires to be presented to supplement the basic financial statements. Such missing information, although not a part of the basic financial statements, is required by the Governmental Accounting Standards Board who considers it to be an essential part of financial reporting for placing the basic financial statements in an appropriate operational, economic, or historical context. Our opinion on the basic financial statements is not affected by this missing information."
                    },
                    {
                        "type": "paragraph",
                        "text": "Other Information Our audit was conducted for the purpose of forming opinions on the financial statements that collectively comprise 8SQRUWK\u0003 7ULEDO\u0003 +RXVLQJ’s basic financial statements. The information listed in the Table of Contents as “Additional Supplementary Information”, which includes Other Governmental Funds: Combining Balance Sheet and Combining Statement of Revenues, Expenditures and Changes in Fund Balances, is presented for purposes of additional analysis and is not a required part of the basic financial statements. The Schedule of Expenditures of Federal Awards is presented for the purpose of additional analysis as required by Title 2 U.S. Code of Federal Regulations (CFR) Part 200, Uniform Administrative Requirements, Cost Principles, and Audit Requirements for Federal Awards, and is also not a required part of the basic financial statements."
                    },
                    {
                        "type": "paragraph"
                    }
                ]
            }
        ]
    },
    "_note": "Response truncated for documentation purposes"
}
Convert PDF-to-JSON — CODE SNIPPETS

    curl --location 'https://zylalabs.com/api/14067/pdf+to+json+ocr+api/34500/convert+pdf-to-json?ocr=auto' \
    --header 'Content-Type: application/json' \ 
    --form 'image=@"FILE_PATH"'

API Access Key & Authentication

After signing up, every developer is assigned a personal API access key, a unique combination of letters and digits provided to access to our API endpoint. To authenticate with the PDF to JSON OCR API simply include your bearer token in the Authorization header.

Headers
Header Description
Authorization Required Should be Bearer access_key. See "Your API Access Key" above when you are subscribed.

No long-term commitment. Upgrade, downgrade, or cancel anytime. Free Trial includes up to 50 requests.

(Save 2 months with annual billing 🎉)

Starts at
$10,000/Year


  • Custom Volume
  • Custom Rate Limit
  • Specialized Customer Support
  • Real-Time API Monitoring

Overview

Convert any PDF document with or without images into structured JSON output with built-in OCR features of the API. The API is best suited for LLM training and dataset creation.

PDF to JSON OCR API FAQs

The Convert PDF-to-JSON endpoint returns structured JSON data that includes extracted text, images, and metadata from the input PDF. It organizes this information into a hierarchical format, making it easy to access and manipulate.

Key fields in the response include "success," "data," "id," "request_id," "file_name," "page_count," "total_pages," and "pages," which contains detailed information about each page's content and structure.

The response data is organized in a JSON object, with a top-level "data" field containing an array of "pages." Each page object includes "page_number," "extraction_method," and "blocks" that detail the content type and text.

The primary parameter is "OCR," which can be set to true to force OCR processing or left as auto for automatic detection. This allows users to customize how text is extracted from image-based PDFs.

The HTML page for conversion endpoint processes raw HTML content and returns it in various formats, such as PDF or DOCX. It extracts text, images, and formatting from the HTML, enabling users to convert web content into structured documents.

Typical use cases include transforming PDF reports, invoices, and contracts into JSON for data analysis, integrating with web applications, and preparing datasets for machine learning model training.

Users can parse the JSON response to extract specific content, such as headings or paragraphs, for further analysis or integration into applications. The structured format allows for easy manipulation and data processing.

The API employs built-in OCR technology to accurately extract text from PDFs, including those with images. Continuous updates and improvements to the OCR algorithms help maintain high data quality and accuracy.

General FAQs

To obtain your API key, first sign in to your account and navigate to the API you want to use. From the API's Pricing section, choose a plan and complete the subscription process. Once subscribed, return to the API page and you will see your API Access Key displayed at the top of the documentation page. You can use this key to authenticate your requests.

You can’t switch APIs during the free trial. If you subscribe to a different API, your trial will end and the new subscription will start as a paid plan.

The free trial lasts for 7 days and allows you to make up to 50 API requests.

No, the free trial is available only once, so we recommend using it on the API that interests you the most. Most of our APIs offer a free trial, but some may not include this option.

Yes. If the API offers a free trial, you will see a "Free 7-Day Trial" option in its Pricing section. The trial lasts for 7 days and allows up to 50 API requests, enabling you to evaluate the API before subscribing to a paid plan.

Zyla API Hub is like a big store for APIs, where you can find thousands of them all in one place. We also offer dedicated support and real-time monitoring of all APIs. Once you sign up, you can pick and choose which APIs you want to use. Just remember, each API needs its own subscription. But if you subscribe to multiple ones, you'll use the same key for all of them, making things easier for you.

Prices are listed in USD (United States Dollar), EUR (Euro), CAD (Canadian Dollar), AUD (Australian Dollar), and GBP (British Pound). We accept all major debit and credit cards. Our payment system uses the latest security technology and is powered by Stripe, one of the world's most reliable payment companies. If you have any trouble paying by card, just contact us at [email protected]

Additionally, if you already have an active subscription in any of these currencies (USD, EUR, CAD, AUD, GBP), that currency will remain for subsequent subscriptions. You can change the currency at any time as long as you don't have any active subscriptions.
The local currency shown on the pricing page is based on the country of your IP address and is provided for reference only. The actual prices are in USD (United States Dollar). When you make a payment, the charge will appear on your card statement in USD, even if you see the equivalent amount in your local currency on our website. This means you cannot pay directly with your local currency.
Occasionally, a bank may decline the charge due to its fraud protection settings. We suggest reaching out to your bank initially to check if they are blocking our charges. Also, you can access the Billing Portal and change the card associated to make the payment. If these does not work and you need further assistance, please contact our team at [email protected]
Prices are determined by a recurring monthly or yearly subscription, depending on the chosen plan.
API calls are deducted from your plan based on successful requests. Each plan comes with a specific number of calls that you can make per month. Only successful calls, indicated by a Status 200 response, will be counted against your total. This ensures that failed or incomplete requests do not impact your monthly quota.
Zyla API Hub works on a recurring monthly subscription system. Your billing cycle will start the day you purchase one of the paid plans, and it will renew the same day of the next month. So be aware to cancel your subscription beforehand if you want to avoid future charges.
To upgrade your current subscription plan, simply go to the pricing page of the API and select the plan you want to upgrade to. The upgrade will be instant, allowing you to immediately enjoy the features of the new plan. Please note that any remaining calls from your previous plan will not be carried over to the new plan, so be aware of this when upgrading. You will be charged the full amount of the new plan.
To check how many API calls you have left for the current month, refer to the 'X-Zyla-API-Calls-Monthly-Remaining' field in the response header. For example, if your plan allows 1,000 requests per month and you've used 100, this field in the response header will indicate 900 remaining calls.

You can monitor your API usage through the response headers included with every request:

x-zyla-api-calls-monthly-used: Shows the total number of API requests you have used during the current billing period.
x-zyla-api-calls-monthly-remaining: Shows the number of API requests you have remaining for the current billing period.

The 'X-Zyla-RateLimit-Reset' header shows the number of seconds until your rate limit resets. This tells you when your request count will start fresh. For example, if it displays 3,600, it means 3,600 seconds are left until the limit resets.

Yes, you can cancel your subscription at any time. Simply go to the Pricing section of the API you're subscribed to and click the "Unsubscribe" button.

Please note that upgrades, downgrades, and cancellations take effect immediately. Once your subscription is canceled, access to the service will end immediately, regardless of any remaining API calls in your quota.

After 7 days, you will be charged the full amount for the plan you were subscribed to during the trial. Therefore, it's important to cancel before the trial period ends. Refund requests for forgetting to cancel on time are not accepted.
When you subscribe to an API free trial, you can make up to 50 API calls. If you wish to make additional API calls beyond this limit, the API will prompt you to perform an "Start Your Paid Plan." You can find the "Start Your Paid Plan" button in your profile under Subscription -> Choose the API you are subscribed to -> Pricing tab.
You can contact us through our chat channel to receive immediate assistance. We are always online from 8 am to 5 pm (EST). If you reach us after that time, we will get back to you as soon as possible. Additionally, you can contact us via email at [email protected]

Please have a look at our Refund Policy: https://zylalabs.com/terms#refund


Related APIs