How many files can I merge at once?

There is no hard limit on the number of files. Speed and capacity mainly depend on your device's memory since all processing is done locally.

Can I merge PDFs with different page sizes (e.g., A4 and Letter)?

Yes. Our tool preserves the original page size and aspect ratio of each PDF without forced stretching or cropping.

No. The merging process is based on concatenating original PDF data streams without re-rendering or lossy compression, ensuring 100% clarity.

Absolutely. Your PDF files never leave your computer or pass through any server, making it the safest choice for processing sensitive documents.

Select multiple PDF files, reorder them, and merge into one document instantly

Pure client-side processing
No uploads, secure for sensitive invoices and contracts

Drag multiple PDFs here or click to select

Merge multiple PDF files instantly

Batch merge electronic invoices. Combine multiple receipts from various sources into a single PDF for easier printing and filing.

Consolidate contract attachments. Merge main documents, scans, and supporting materials in order to build complete electronic records.

100% Secure. Merge sensitive documents like IDs, bank statements, or confidential reports locally without ever leaving your device.

Drag and drop multiple PDF files (such as different contract chapters or invoices) into the upload area.

Preview and drag file cards to reorder them, ensuring the final document follows your desired sequence.

Click 'Merge PDF' to combine them instantly in your browser. No uploads required; download immediately.

How many files can I merge at once?: There is no hard limit on the number of files. Speed and capacity mainly depend on your device's memory since all processing is done locally.
Can I merge PDFs with different page sizes (e.g., A4 and Letter)?: Yes. Our tool preserves the original page size and aspect ratio of each PDF without forced stretching or cropping.
Will the quality decrease after merging?: No. The merging process is based on concatenating original PDF data streams without re-rendering or lossy compression, ensuring 100% clarity.
Is it safe to merge confidential documents?: Absolutely. Your PDF files never leave your computer or pass through any server, making it the safest choice for processing sensitive documents.