Free Online PDF Editor Guide

Everything you need to edit PDF documents — no subscription required.
Available PDF Tools
| Tool | What It Does | Best For |
|---|---|---|
| Merge PDF | Combine multiple PDFs into one | Combining reports, invoices, scans |
| Split PDF | Extract specific pages | Splitting chapters, removing pages |
| Compress PDF | Reduce file size | Email attachments, web uploads |
| Edit PDF | Add text, images, shapes | Filling forms, adding annotations |
| Sign PDF | Add digital signatures | Contracts, agreements, forms |
| Watermark PDF | Add text/image watermarks | Copyright protection, drafts |
| Rotate PDF | Fix page orientation | Scanned documents, mixed layouts |
| PDF to JPG | Convert pages to images | Social sharing, presentations |
How to Merge PDFs
1. Open the Merge PDF tool
2. Upload your PDF files (drag and drop)
3. Drag thumbnails to reorder pages
4. Click "Merge" and download
All processing is local — your documents never leave your browser.
How to Compress a PDF
1. Open the Compress PDF tool
2. Upload your PDF
3. Choose compression level (High, Medium, Low)
4. Download your smaller PDF
Expected Compression Rates
| Content Type | High Compression | Medium | Low |
|---|---|---|---|
| Text-only | 40-60% | 20-40% | 5-15% |
| Text + images | 50-80% | 40-60% | 10-30% |
| Scanned documents | 60-85% | 45-65% | 15-35% |
How to Sign a PDF
1. Open the Sign PDF tool
2. Upload your document
3. Create your signature (draw, type, or upload)
4. Position it on the page
5. Download the signed PDF
Privacy Guarantee
Unlike Adobe Acrobat or DocuSign, all our PDF tools process files entirely in your browser. Your sensitive documents are never uploaded to any server. When you close the tab, all data is gone.
Try all our free PDF tools at ImageToolbox.app — no signup, no limits, complete privacy.
Related Articles

BMP vs PNG vs JPEG: Which File Format Should You Use?
Compare BMP, PNG, and JPEG image formats. Learn about compression, quality, transparency, and file size to choose the right format for your needs.

Extract Text from Images: Free OCR Guide
Learn how to extract text from images using free OCR tools. Convert scanned documents, screenshots, and photos to editable text online.