Merge PDF

Combining multiple PDFs into one file is a frequent task for both personal and professional workflows. Whether you're gathering invoices, assembling a portfolio, or compiling scanned documents, merging keeps everything organized. Use PDF99 to upload multiple PDFs, reorder pages visually, and export a single merged file.

Best practices

1. Check page order: Preview and reorder pages to ensure logical flow.
2. Remove duplicates: Delete repeated pages or blank pages before merging.
3. Optimize after merge: Compress the merged PDF if the resulting file is large.
4. Use bookmarks: Add bookmarks or a table of contents for long merged documents if your workflow supports it.

When to use

Merge PDFs when delivering a single report, sending application materials, or combining scanned documents into a neat package. It’s especially helpful for legal, academic, and business documents that need consistent ordering and formatting.