serconet
← All tools

MERGE PDF DOCUMENTS

Merge your PDFs.
One document, in order.

Add your PDFs, choose their order and combine every page in one file. Free, without uploading your documents to a server.

＋

Choose the PDFs to merge

Drop them here or choose them from your device.

2–20 files · 25 MiB per PDF · 75 MiB and 500 pages in total

Add at least two PDFs to get started.

File order

    How to combine PDFs into one

    1. Select two or more compatible PDFs. Each file shows its page count and size.
    2. Use Move up and Move down to arrange the files. Pages within each PDF keep their original order.
    3. Select Merge PDFs, open the result to review it and download. Changing the selection, order or name clears the previous download.

    What the merged PDF keeps

    Pages are copied with their content, fonts, images, dimensions, crop and rotation; they are not converted into photographs and images are not recompressed. This tool is not intended to reduce file size, and the final file may be larger. No watermarks are added. HTTP/HTTPS web links are supported, but other annotations are rejected. Always review the final file.

    Signatures, forms and other limitations

    Merging creates a new document and does not preserve digital signature validity. Files with detected signature structures are therefore rejected, even if the field is empty. Interactive forms, including empty fields, are also rejected to avoid losing values or interactivity. We do not ask for or attempt to remove passwords. A drawn or scanned signature image is not a digital signature and is copied as page content.

    Document navigation bookmarks and original document metadata are not retained. PDF/A conformance, accessibility tagging and advanced layers are not guaranteed. You cannot select individual pages, edit text, unlock PDFs or preserve complex interactive features. Damaged or unsupported files may be rejected even if another reader can open them.

    Privacy and memory limits

    Files are read and merged in your browser without sending them to a server. Analytics does not receive their names, contents or the output name. Remove all, reload or close the page to clear the selection. Up to 20 files, 25 MiB per PDF, 75 MiB input, 500 pages and 100 MiB output. These are practical limits: use fewer files if your device has limited memory.

    pdf-lib 1.17.1 · MIT licence and notices (new tab).

    BEFORE YOU GET STARTED

    Your questions, answered.

    How can I merge PDF documents without signing up?

    Choose at least two compatible PDFs, arrange them with Move up and Move down, and select Merge PDFs. All pages are copied in file order. Open the result to check it before downloading.

    Does merging PDFs also compress them?

    No. This tool combines pages without recompressing images or deliberately reducing file size. The output may be larger. It does not preserve digital signature validity or accept protected documents or forms.

    How can I merge only some pages from several PDFs?

    First extract the pages you need from each document. Then add those PDFs to Merge PDF and arrange them. Files do not move automatically between tools: save them and select them in the next step.

    Found this useful?

    Copy the link to keep it handy or share it with someone who needs it.

    Privacy and cookies

    Controller: Francisco Nicasio Rodríguez · fnicasio@gmail.com.

    Purpose: understand visits, viewed pages and tool usage and clicks to AI sources to improve the site. Basis: your optional consent, which you can withdraw here at any time without affecting previous processing. We do not use this data for personalized advertising.

    Only after acceptance do we load Google Analytics 4, provided by Google Ireland Limited. It may process cookie identifiers, browser and device information, approximate location and usage events. Google receives the connection, including the IP address, although GA4 does not log or store IP addresses. We do not send files, file names, entered text, document titles, download URLs, URL parameters or our own user IDs.

    Cookies _ga and _ga_*: up to 6 months, without refreshing their expiry on every visit. Your cookie choice is stored in this browser for 6 months. Google applies its retention policy; this property initially retains event and user data for 2 months. Aggregated reports may be kept longer. Your language preference is stored separately to remember your choice.

    Google may process data outside the EEA under its terms and transfer safeguards. You can consult the details and request access, rectification, erasure, restriction or portability using the contact above, and lodge a complaint with the Spanish Data Protection Agency (AEPD). How Google uses data · Processing terms and transfers · AEPD.