✦ SOLVORY PDF STUDIO · FREE ONLINE TOOLS
Merge PDF — Free Online Tool
Combine multiple PDFs into one document with file-order controls, native page copying, individual file previews and one-click download.
Enable JavaScript to use this PDF tool. Instructions and limitations are available below.
How to use Merge PDF
Combine multiple PDFs into one document with file-order controls, native page copying, individual file previews and one-click download.
- Add a PDF or image, or select multiple files when you need a bulk operation.
- Check the page preview and adjust input order, selected page ranges and tool-specific settings.
- Click Process files and wait for the browser to finish each operation.
- Review output file names and sizes, then download individual results or the ZIP archive.
How Merge PDF works
Merge PDF copies pages from each uploaded PDF into a new PDF in queue order. It generally preserves page graphics and selectable text.
Workflow example: Upload a three-page PDF, then a two-page PDF, and merge them to produce a five-page file. Reorder the inputs first if necessary.
Realistic limits: Browser-based processing may be affected by PDF encryption, uncommon fonts or encodings, device memory and file complexity. Input limit is 35 MB per file, 160 MB combined, up to 15 files. Multiple resulting pages or images may increase output size. Download results before leaving this page.
Frequently asked questions
Can I rearrange files before merging?
Yes. Up/Down controls change the source-document order. Pages inside each source remain in original order.
Can I merge password-protected PDFs?
Encrypted or restricted PDFs may not open. Remove passwords only when authorized before using the tool.
Can I work with multiple files?
Yes. Up to 15 files per batch, with a 35 MB limit for each input and a combined 160 MB limit. Some operations combine everything into one output PDF; others generate individual files or a ZIP.
Are documents sent to Solvory servers?
This application processes PDF inputs in your browser. Libraries are downloaded from external CDNs, which can receive normal connection metadata. Your uploaded files are not transmitted to a Solvory conversion endpoint by these tools.
Why did my PDF fail to convert?
Password protection, corrupt files, unsupported features, very large page dimensions, complex fonts or insufficient device memory can cause errors. Use a smaller valid PDF or another supported browser.
Privacy, compatibility and safety
Files are handled locally through browser PDF APIs and open-source libraries loaded from CDNs. These tools do not intentionally upload PDF contents to Solvory servers. Some PDFs can have restricted or unsupported features. Browser processing does not promise permanent redaction, lossless reformatting or exact output sizes.