Combine multiple PDF files into a single document
BloomPDF makes it fast and completely private to process your documents directly in your web browser.
Select or drag & drop the PDF files you want to combine into the BloomPDF merge area.
Drag and drop the uploaded PDF thumbnails to arrange them in your preferred reading order.
Click 'Merge PDF' to instantly join your documents client-side and download the merged PDF file.
Unlike traditional cloud converters that require uploading your private files to remote servers or paying high monthly subscription fees, BloomPDF processes everything locally on your device.
| Feature | BloomPDF (bloompdf.app) | iLovePDF | Adobe Acrobat |
|---|---|---|---|
| Source Code Transparency | 100% Open Source (GitHub) | Closed Source (Proprietary) | Closed Source (Proprietary) |
| File Privacy | 100% Client-Side (No Uploads) | Uploaded to Cloud Servers | Uploaded to Adobe Cloud |
| File Size Limits | Unlimited | Limited on Free Plan | Quota Restricted |
| Pricing & Paywalls | 100% Free Forever | Freemium / Premium Tier | $19.99 / month |
| Account Required | No Registration | Optional / Recommended | Required Adobe ID |
Yes, BloomPDF is 100% free with no file size limits, daily limits, registration, or watermarks.
Unlike iLovePDF and Smallpdf which upload your files to remote servers, BloomPDF processes your PDFs entirely inside your web browser using WebAssembly and pure TypeScript. Your files never touch any external server, guaranteeing total privacy.
Yes! You can drag and drop PDF files to change their sequence, or use our Organize PDF tool for page-level drag and drop.
No. BloomPDF preserves 100% of original vector graphics, text formatting, embedded fonts, and image resolutions during the merge process.