PDF Birleştirici
PDF manipulation tool. Coming soon.
Local processingSelect 2 or more PDF files. All processing happens in your browser — files are never uploaded.
What is PDF Birleştirici?
A PDF merger combines multiple PDF files into a single document, concatenating pages in the chosen order. This is useful for assembling reports from chapters, combining scanned pages, or joining signed contracts with attachments. The merged PDF preserves each source's pages, bookmarks, and form fields where possible. Processing happens in the browser so confidential documents are not uploaded.
How It Works
Each input PDF is parsed client-side into its page tree and resource dictionary. The merger constructs a new PDF document, importing page objects from each source in sequence and rewriting cross-reference entries to point at the new structure. Page rotation, size, and embedded resources (fonts, images) are carried over. The output is serialized as a fresh PDF with a rebuilt xref table. All work is local.
Common Use Cases
- Assembling multi-chapter reports — merge separate section PDFs into one deliverable
- Combining scanned pages — join individually scanned sheets into a single document
- Appending supporting material — add exhibits or cover sheets to a main contract
- Creating course packs — merge syllabus, readings, and assignments for students
Technical Details
Engine: client-side JavaScript PDF library. Page order follows the input sequence (drag to reorder). Bookmarks and form fields from source PDFs are preserved where the library supports them; interactive form AcroForm merging can be limited. Encrypted PDFs require their passwords. Output is a standard PDF 1.4+ file. No content is uploaded.
How to Use
Enter your input above. The result updates automatically. Use the copy button to copy the result.
Privacy
All processing happens in your browser. Your data is never uploaded to any server.
FAQ
Is this PDF Merger free?
Yes, completely free. No signup, no watermark, no limits. Merge as many PDFs as you need.
Does this tool upload my PDF files?
No. All merging happens entirely in your browser using the pdf-lib library. Your PDF files never leave your device — they are not uploaded to any server.
How many PDFs can I merge at once?
You can merge two or more PDFs in a single operation. The practical limit depends on browser memory — most modern browsers handle dozens of files totaling hundreds of megabytes.
Does the merged PDF preserve bookmarks and form fields?
Page content, embedded fonts, and images are preserved. Interactive form fields (AcroForm) and bookmarks from source PDFs may have limited support due to the complexity of merging interactive elements across documents.
Can I merge encrypted or password-protected PDFs?
Password-protected PDFs are not supported. Please decrypt your PDFs first, then merge them.