Add professional text watermarks to any PDF document with full control over position, opacity, font size, color, and rotation. Stamp documents with CONFIDENTIAL, DRAFT, your brand name, or any custom text across every page. The watermark is rendered as selectable, high-quality text with Unicode support. Ideal for branding, copyright protection, document status marking, and legal workflows. Upload a PDF and receive a downloadable watermarked file.
{"success":true,"url":"https://pub-6db99bab215e44889f46c4b2a619f8c5.r2.dev/watermarked/20260619/f977168b-1b94-4749-a97a-0e90c2cc6af3.pdf","watermark_type":"text","pages_watermarked":5,"processing_time":"673ms"}
curl --location 'https://zylalabs.com/api/12964/pdf+text+watermark+api/25882/add+text+watermark?text=CONFIDENTIAL BRO&rotation=Optional' \
--header 'Content-Type: application/json' \
--form 'image=@"FILE_PATH"'
साइन अप करने के बाद, प्रत्येक डेवलपर को एक पर्सनल API एक्सेस की असाइन की जाती है, जो अक्षरों और अंकों का एक यूनिक संयोजन होता है, जिसका उपयोग हमारे API एंडपॉइंट तक पहुंचने के लिए किया जाता है। प्रमाणीकरण के लिए PDF Text Watermark API के साथ बस अपने बेयरर टोकन को Authorization हेडर में शामिल करें।
| हेडर | विवरण |
|---|---|
Authorization
|
आवश्यक
होना चाहिए Bearer access_key. जब आप सब्सक्राइब हों तो ऊपर "Your API Access Key" देखें।
|
कोई लंबी अवधि की प्रतिबद्धता नहीं। कभी भी अपग्रेड, डाउनग्रेड या कैंसल करें। फ्री ट्रायल में 50 रिक्वेस्ट तक शामिल हैं।
(वार्षिक बिलिंग के साथ 2 महीने बचाएँ 🎉)
अग्रणी कंपनियों का भरोसा
The PDF Text Watermark API allows developers to add customizable text watermarks to PDF documents through a simple API request. Upload a PDF file, specify the watermark text, and configure its appearance using options such as position, opacity, font size, color, and rotation. The API processes the document and returns a downloadable version containing the watermark applied across all pages.
Watermarks can be used to identify document status, indicate ownership, display copyright notices, apply company branding, or mark documents for internal and external distribution. Common examples include "CONFIDENTIAL", "DRAFT", "INTERNAL USE ONLY", company names, project identifiers, legal notices, and other custom text labels.
The API supports configurable watermark placement, allowing text to appear in the center of the page or in one of the page corners. Opacity settings can be adjusted to ensure the watermark remains visible while preserving the readability of the original document. Rotation controls make it possible to create diagonal stamps commonly used for confidential and draft documents.
Watermark text is rendered directly into the PDF and supports Unicode characters, making it suitable for multiple languages and international document workflows. Font size and color can be customized to match branding requirements or document policies.
Common use cases include:
Marking confidential documents
Adding draft or review status indicators
Applying company branding to PDFs
Copyright and ownership labeling
Legal and compliance workflows
Contract and agreement management
Internal document distribution
Invoice and report identification
Educational and publishing platforms
Document archiving and record management
Features:
Add text watermarks to PDF documents
Apply watermarks across all pages
Custom watermark text
Adjustable position settings
Configurable opacity levels
Custom font size controls
Custom text color selection
Rotation angle support
Unicode character support
Downloadable PDF output
JSON response format
HTTPS-based API access
The API accepts PDF files as multipart form-data and returns structured JSON containing a download URL for the processed document. It can be integrated into document management systems, workflow automation platforms, web applications, mobile applications, business software, and file processing services that require PDF watermarking functionality.
The Add Text Watermark endpoint returns a JSON object containing the success status of the operation, a URL to download the watermarked PDF, the type of watermark applied, the number of pages watermarked, and the processing time.
प्रतिक्रिया डेटा के मुख्य क्षेत्र में "सफलता" (Boolean), "url" (स्टिंग), "वाटरमार्क_प्रकार" (स्टिंग), "पृष्ठ_वाटरमार्क किए गए" (पूर्णांक) और "प्रसंस्करण_समय" (स्टिंग) शामिल हैं
Users can customize their requests by specifying parameters such as the PDF file (as multipart form-data), watermark text, position, opacity, font size, color, and rotation angle.
The response data is organized in a structured JSON format, with key-value pairs that provide information about the success of the request, the downloadable URL, and details about the watermarking process.
Typical use cases include marking documents as "CONFIDENTIAL" or "DRAFT," applying company branding, labeling copyright information, and managing legal documents for compliance and distribution.
उपयोगकर्ता लौटाए गए डेटा का उपयोग "सफलता" फ़ील्ड की जांच करके ऑपरेशन की सफलता की पुष्टि करने के लिए कर सकते हैं "url" का उपयोग करके वॉटरमार्क किए गए PDF को डाउनलोड करने के लिए और "pages_watermarked" का विश्लेषण करके प्रोसेसिंग अंतर्दृष्टियों के लिए
The endpoint provides information about the watermarking process, including the watermark text applied, the number of pages affected, and the time taken for processing, allowing users to track and manage their document workflows.
Data accuracy is maintained through robust processing algorithms that ensure the watermark is applied consistently across all pages, with customizable parameters allowing for precise control over appearance and placement.