Are my PDFs uploaded?

No. Merging happens directly in your browser. Your PDF files are read from your device and are not sent to Stay Local Tools servers for processing.

Can I change the order of my PDFs?

Yes. Use the up and down arrows next to each file to move it, or drag a file with your mouse on desktop. The files are combined in the order shown in the list, top to bottom.

Does merging reduce quality?

No. Merging copies the pages exactly as they are into one new file. Text, images and layout are not redrawn or recompressed.

How many PDFs can I merge?

There is no fixed limit built into this tool. The practical limit depends on your browser and device memory — very large batches of large PDFs may be slow or fail on a low-memory device.

Merge PDF

Join several PDF files into one file.

Local Processing

Files stay on your device.

Choose Files

or drag and drop files here

Supported: PDF · Best results under 50 MB per file.

Files stay on your device

Private by design

Your files are processed directly in your browser. They are not uploaded to Stay Local Tools servers for processing. Because the work happens on your device, your files stay with you unless you download or share them yourself.

Note: the website itself still loads normal web files, and may use analytics or ads later. The promise here is about the files and text you put into these tools.

How to Use

Press Choose Files and select two or more PDF files.
Use the arrows to put the files in the order you want them merged.
Press Merge PDF. Your browser does the work, so nothing is sent to a server.
Download the merged PDF.

What does merging PDFs do?

Merging joins two or more PDF files into a single new file. Every page from every file you choose is copied into the new PDF, one after another, in the order you set. Nothing about the pages themselves changes.

Does merging change PDF quality?

No. Each page is copied as it is, so text stays sharp and images keep their original quality. Merging only combines pages — it does not redraw or recompress anything.

Does page order matter?

Yes. The files are combined in the order shown in the list, from top to bottom. Use the up and down arrows, or drag a file on desktop, to put your files in the order you want before you press Merge PDF.

Why merging on your own device helps

Your PDF files are read and combined on your own device — nothing is sent to a server to join them together. They stay with you unless you choose to download the merged result.

Questions and Answers

: No. Merging happens directly in your browser. Your PDF files are read from your device and are not sent to Stay Local Tools servers for processing.
: Yes. Use the up and down arrows next to each file to move it, or drag a file with your mouse on desktop. The files are combined in the order shown in the list, top to bottom.
: No. Merging copies the pages exactly as they are into one new file. Text, images and layout are not redrawn or recompressed.
: There is no fixed limit built into this tool. The practical limit depends on your browser and device memory — very large batches of large PDFs may be slow or fail on a low-memory device.

Other Languages

Español

Unir PDF

Une varios archivos PDF en uno solo, ordenándolos como quieras antes de descargar el resultado. El archivo se procesa directamente en tu navegador y no se sube a los servidores de Stay Local Tools para el procesamiento.

Preguntas frecuentes

: No. La unión ocurre directamente en tu navegador; tus archivos PDF se leen desde tu dispositivo y no se envían a los servidores de Stay Local Tools.
: Sí. Usa las flechas junto a cada archivo para moverlo, o arrástralo con el ratón en escritorio. Los archivos se combinan en el orden mostrado en la lista.
: No. Al unir se copian las páginas exactamente como están en un archivo nuevo; el texto, las imágenes y el diseño no se vuelven a dibujar ni a comprimir.

Português (Brasil)

Juntar PDF

Junte vários arquivos PDF em um só, organizando-os como quiser antes de baixar o resultado. O arquivo é processado diretamente no navegador e não é enviado aos servidores do Stay Local Tools para processamento.

Perguntas frequentes

: Não. A união acontece diretamente no navegador; seus arquivos PDF são lidos do seu dispositivo e não são enviados aos servidores do Stay Local Tools.
: Sim. Use as setas ao lado de cada arquivo para movê-lo, ou arraste com o mouse no computador. Os arquivos são combinados na ordem mostrada na lista.
: Não. Ao juntar, as páginas são copiadas exatamente como estão em um novo arquivo; texto, imagens e layout não são redesenhados nem recomprimidos.

한국어

PDF 합치기

여러 PDF 파일을 원하는 순서로 정렬한 뒤 하나로 합칠 수 있습니다. 파일은 브라우저에서 직접 처리되며 Stay Local Tools 서버에 업로드되지 않습니다.

자주 묻는 질문

: 아니요. 합치기는 브라우저에서 직접 이루어지며, PDF 파일은 기기에서 읽을 뿐 Stay Local Tools 서버로 전송되지 않습니다.
: 네. 각 파일 옆의 화살표를 사용하거나 데스크톱에서 마우스로 끌어서 순서를 바꿀 수 있습니다. 목록에 표시된 순서대로 합쳐집니다.
: 아니요. 합치기는 페이지를 있는 그대로 새 파일에 복사하는 방식이라 텍스트, 이미지, 레이아웃이 다시 그려지거나 압축되지 않습니다.