Merge PDF files and arrange their pages, on your device

No. Your PDFs are read and merged in your browser, on your device, and are never uploaded. Your browser blocks this page from connecting to the internet or loading anything from other websites. How this works.

Add your PDFs, put them in the order you want and merge them. To change individual pages first, open the page view and move, rotate or leave out pages, or insert a blank page. The merged file is called merged.pdf unless you choose another name.

Yes. The page view shows the pages of all your files together. Move pages into any order, also between files, rotate them by 90°, leave pages out, duplicate a page or insert a blank page. You can select pages by range and undo any step. Pages you leave out are not in the merged file at all: nothing from them is copied.

No. Pages are copied as they are, not re-rendered or compressed, so images keep their resolution and text stays text: you can select and search it as in your PDFs. Every page of the merged file is compared with the page it came from, and if a check fails, there is no download. A page changes only where you ask, for example when you rotate it, or where the tool tells you, for example when a digital signature is removed. A scan without a text layer stays an image, because merging doesn’t add text recognition.

Yes. Scanned pages are copied into the merged file as they are, and a text layer added by your scanner’s text recognition (OCR) stays searchable. Merging doesn’t add text recognition, so a scan without a text layer stays an image. Pages scanned the wrong way round can be rotated before merging.

No. Merge PDF works with PDF files only. If you add a JPG, PNG, Word or other file, the tool tells you it isn’t a PDF and doesn’t add it. To include one, first make a PDF of it, for example with your app’s Save as PDF or Print to PDF option if it has one, then add that PDF.

Yes. It runs in a current web browser on Windows, macOS, Linux, Android, iPhone and iPad, with nothing to install. On a touch screen, press and hold a page to move it. Phones have less memory than computers, so the tool accepts smaller files there and tells you before merging if your files are over the limit.

It is not an offline app: you need an internet connection to open this page, which loads the tool from puffinkit.com. Your files are not sent over that connection. They are read and merged on your device.

Yes. The files’ bookmarks are combined in the order of the merged file, and links inside a file still go to the right page after you reorder pages. You can also group each file’s bookmarks under its file name, use only the file names, or leave bookmarks out. Bookmarks and links that point to a page you left out are removed, and each removal is listed. Page labels such as “i, ii, iii” are removed, so viewers number the pages from 1.

Form fields are carried over with their values and combined into one form. If two files have fields with the same name, for example two copies of the same form, the later fields are renamed so their values stay separate, and the tool tells you. You can also flatten the forms, which turns the fields into ordinary page content. Dynamic XFA forms can’t be merged.

Yes. Enter each file’s password when asked; it is used only on your device and is never stored. If all your files have the same protection, the merged file is protected in the same way. Otherwise you choose between a new password for the merged file and an unprotected file, which you have to confirm. If a file’s owner has restricted page changes, you need its owner password.

Merging creates a new file, so the digital signatures of the originals can’t stay valid. The tool asks you to confirm first, then removes the signatures, including how they look on the page, and the result says that the merged file contains no digital signatures. Keep the originals if you need the signed versions. Certified PDFs can be merged only after you confirm that you are allowed to change them.

There is no usage cap and no paid tier. The practical limit is your device’s memory, so the tool has a size and page limit for each kind of device and tells you before merging if your files are over it. Computers handle much larger files than phones. Merging doesn’t compress: pages are copied as they are, and fonts used by several files are kept once for each file, so the merged file can be larger than you expect.

Use Smart PDF Split & Rename. It splits a PDF every N pages, by page ranges or wherever the text changes, for example at each new invoice number, and names each file from its content. It also runs in your browser without uploading your files.

No. You can use this tool without signing up.