PDF Slide Editor

A browser-based PDF slide editor for managing presentations. Load PDFs or images, reorder slides with drag & drop, add branding overlays, and remove AI-generated watermarks—all without leaving your browser.

Features

Drag & drop - Load PDFs or images directly into the editor
Reorder slides - Drag slides to rearrange your presentation
Add/delete/replace - Manage individual slides with precision
Branding overlays - Add logo, corner marks, and top bar to slides
Watermark removal - Strip Gemini/NanoBanana watermarks automatically
PDF export - Download the final processed presentation
Session persistence - Work survives page refresh via IndexedDB

How It Works

Drop your content - Drag a PDF or images into the editor
Arrange slides - Reorder by dragging, delete unwanted slides
Remove watermarks - One-click removal of AI watermarks
Add branding - Process slides with your logo and overlays
Export - Download as a clean PDF

Tech Stack

Frontend

Vanilla HTML/JS - No build step, just open in browser
IndexedDB - Client-side session persistence
PDF.js - PDF rendering and manipulation

Backend

Python - Watermark removal server
Pillow - Image processing
GeminiWatermarkTool - Binary for removing Gemini image watermarks

Why I Built This

When creating slide presentations with AI image generators like Gemini or NanoBanana, the output often includes watermarks and lacks consistent branding. Manually removing watermarks and adding logos to dozens of slides is tedious.

This tool automates the entire workflow: load your AI-generated slides, strip the watermarks, add your branding, and export a polished PDF—all in one place.

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