Can I merge PDF documents for an ITR or government submission?

Yes. Upload all your documents, drag to reorder if needed, and merge into one PDF. Most government portals accept merged PDFs under 2MB — compress the merged file if it exceeds that.

How many PDFs can I merge at once?

Up to 20 PDFs in one operation. You can reorder them before merging by dragging or using the arrow buttons.

Is my file uploaded to a server?

No. Merging runs entirely in your browser using pdf-lib. Your files never leave your device.

Does it preserve all pages and formatting?

Yes. All pages from all PDFs are included in the merged output. Formatting, embedded fonts, and images are preserved.

Does it work on encrypted PDFs?

No. Each PDF must not be password-protected. Use the Unlock PDF tool on any encrypted files first.

Does it work on mobile?

Yes. Works on iOS Safari and Android Chrome without any installation.

Merge PDF Files Online Free | PixlUtils

Drop PDF files here or click to browse

Up to 20 PDFs · drag any page to reorder · undo/redo supported

More PDF Tools

Split PDF

Divide into parts

Compress PDF

Reduce size before merging

Rotate PDF

Fix orientation before merging

Add Page Numbers

Number after merging

PDF Studio

Full PDF pipeline

📄

Try PDF Studio - all tools in one place

Merge, compress, rotate, watermark and add page numbers to PDFs in a single workflow - 100% browser-based.

Full PDF pipelineNo uploadsDrag to reorder

Open PDF Studio →

What is merge pdf?

Merging PDFs is one of the most common document tasks - combining invoices, reports, chapters, scanned pages, or contracts into a single shareable file. PixlUtils merges up to 20 PDFs in your browser using pdf-lib, preserving all pages and formatting. Drag to reorder files before merging. No upload, no signup, free forever.

Combine up to 20 PDFs into oneReorder files before merging with drag or arrowsPreserves all pages, fonts, and imagesWorks on any non-encrypted PDFNo upload - runs in browser with pdf-lib100% private - files stay on your device

How it works

Three steps to combine your PDFs into one - no software needed.

Upload your PDFs

Add up to 20 PDF files by clicking or dragging. Files stay 100% on your device.

Reorder if needed

Drag files to set the merge order, or use the ↑ ↓ arrow buttons to adjust sequence.

Download the merged PDF

Click Merge and download the combined PDF instantly. No watermark, no account needed.

💡 Pro Tips

Compress individual PDFs before merging

Merging large PDFs produces a large output. Compress each file first with the Compress PDF tool - the savings stack up.

Add page numbers after merging

Page numbers added before merging reset per file. Add them after merging for consecutive numbering across the whole document.

Unlock encrypted PDFs before merging

Password-protected PDFs cannot be merged. Use the Unlock PDF tool to remove the password first.

Use drag-to-reorder for precise control

Drag files into the exact order you want - cover page first, appendix last. The order you see is the order in the merged PDF.

Frequently Asked Questions