NetGram PDF Watermark is a web-based tool that converts 4:5 PDF pages into individual 4:5 WebP images with a watermark. Users can upload a PDF and watermark, apply the watermark to multiple pages, use the Invert option on specific pages when needed, and export the final pages directly as WebP images.
NetGram PDF Watermark is a web-based PDF processing tool developed by NetGram Labs for converting 4:5 PDF pages into individual WebP images with watermarks. It simplifies multi-page PDF processing for web stories, news graphics, social media content, and other vertical digital content.
The tool is designed for workflows where PDF pages are prepared as vertical visual content, such as web stories, news graphics, social media content, and digital publications.
Instead of manually converting each PDF page into an image and then adding a watermark, users can upload the complete PDF, add a watermark, process the pages, and export the final pages directly as WebP images.
The application does not export the result back as a PDF. Each processed page is exported separately as a 4:5 WebP image.
A page-specific Invert option is also available when the watermark is difficult to see against the background of a particular page.
| Property | Details |
|---|---|
| Project Name | NetGram PDF Watermark |
| Project Type | PDF Processing & Image Watermarking Web App |
| Category | PDF Processing / Image Utility |
| Status | Live / Production |
| Website | NETGRAM PDF WATERMARK |
| Input Format | |
| PDF Format | 4:5 |
| Output Format | Individual WebP Images |
| Output Ratio | 4:5 |
| Main Function | 4:5 PDF → Watermarked WebP |
The project was created to simplify the process of converting 4:5 PDF pages into individual watermarked WebP images for digital publishing and visual content workflows.
When a PDF contains pages designed in a 4:5 format, those pages may need to be converted into individual images before they can be used as web stories, social posts, or other digital content.
Doing this manually means converting every page separately and then applying a watermark to each image.
NetGram PDF Watermark brings these steps into one browser-based workflow.
The basic process is:
Upload 4:5 PDF
↓
Upload Watermark
↓
Process PDF Pages
↓
Apply Watermark
↓
Use Invert Where Required
↓
Export Individual 4:5 WebP ImagesThe application is designed to process PDFs prepared in a 4:5 format.
The PDF can contain multiple pages, and each page is handled individually during processing.
For example:
4:5 PDF
│
├── Page 1
├── Page 2
├── Page 3
└── Page 4Each page can then be converted into its own image.
The main purpose of the application is to convert each PDF page into an individual WebP image while maintaining the required 4:5 output format.
For example:
PDF
│
├── Page 1 → Page 1.webp
├── Page 2 → Page 2.webp
├── Page 3 → Page 3.webp
└── Page 4 → Page 4.webpThe generated images maintain the required 4:5 aspect ratio.
A single watermark image can be uploaded and applied across the selected PDF pages during processing.
The watermark can be used for:
The same watermark can be applied across the required pages during processing.
Different pages may have different backgrounds, so the same watermark may not have the same visibility on every page. The page-specific Invert option allows the watermark treatment to be adjusted for selected pages.
Example:
Page 1 → Normal Watermark
Page 2 → Normal Watermark
Page 3 → Invert Watermark
Page 4 → Normal WatermarkThis allows the watermark appearance to be adjusted only where it is required.
The original watermark file does not need to be edited manually.
After processing, each PDF page is exported as an individual WebP image. The application does not regenerate the processed content as a PDF.
For example:
Input:
news-story.pdf
Output:
01.webp
02.webp
03.webp
04.webp
05.webpThis makes the generated files ready to use directly on websites, web stories, social platforms, and other digital content workflows.
The complete workflow is kept simple:
4:5 PDF
│
▼
Upload PDF
│
▼
Upload Watermark
│
▼
Process PDF Pages
│
▼
Check Individual Pages
│
▼
Invert Where Required
│
▼
Apply Watermark
│
▼
Export 4:5 WebP ImagesThe final output is a collection of WebP images rather than a PDF.
The application can be used for:
It is especially useful when multiple 4:5 PDF pages need to be converted and watermarked together.
The interface was designed around a focused PDF-to-image workflow. Instead of providing unnecessary image-editing controls, the application keeps the main actions centered around PDF upload, watermarking, page processing, and WebP export.
The main process is:
The goal was to keep the interface focused on the task and avoid unnecessary editing controls.
A PDF can contain many pages, so each page needs to be processed separately and converted into an individual image.
The application needs to handle the complete document while keeping the resulting pages separate.
The project is specifically designed around 4:5 content.
The generated WebP images need to maintain the same vertical format so they can be used directly for web stories and other 4:5 visual content.
A watermark that works well on one page may not work visually on another page because PDF pages can have different backgrounds.
The page-level Invert option provides a simple way to handle these differences without requiring users to create multiple watermark files.
The final requirement was not to generate another PDF.
The processed pages need to be exported as individual WebP files so they can be used directly as images.
This keeps the final workflow simple:
PDF → Process → Watermark → WebPThe application was developed around the actual PDF watermarking workflow.
The main development steps included:
NetGram Labs handled the development and implementation of the PDF watermarking application, including the PDF processing workflow, watermark functionality, page-level controls, WebP generation, responsive interface, testing, and deployment.
NetGram PDF Watermark provides a focused browser-based workflow for converting 4:5 PDF pages into individual watermarked WebP images.
Users can upload a PDF, add a watermark, adjust watermark treatment for selected pages, and export the processed pages without manually converting each page separately.
The final output consists of individual WebP images that can be used for web stories, news graphics, social media content, and other digital publishing workflows.
The complete process can be handled from the browser:
4:5 PDF
↓
Watermark
↓
Page Processing
↓
Optional Invert
↓
4:5 WebP ImagesThe final output is WebP images only, making the generated files ready for use in web stories, news content, social media, and other digital platforms.
Website: NETGRAM PDF WATERMARK
Project: NETGRAM PDF WATERMARK
Our engineering team builds high-velocity websites, web apps, AI automations, and custom content systems. Let's talk about your project goals.