Drop PDF files or pictures here or click to browseTap to choose PDF files or pictures
Select several PDF files (and JPG or PNG pictures) to merge them into one
Large files (over 50 MB) may take longer or run out of browser memory
About Merge PDF
A tool for combining two or more PDF files into a single document, in whatever order you choose. This is the everyday fix for the common situation where you've scanned several pages separately, or received a contract as multiple attachments, and need them as one file to send or print. Drop your PDF files into the upload area (or select them one at a time), then drag to reorder them into the sequence you want — or use the up/down arrow buttons on each file if you'd rather not drag. Once the order looks right, click merge and download the combined file. Need only some pages? Type a range such as 1-3,5 next to a file, or open Choose pages to see small page previews, leave pages out and rotate them. To mix pages from different files, open Arrange all pages: every page of the result shows as a preview that you can drag into any order, rotate or delete. JPG and PNG pictures can be added too; each becomes one page. The merge happens entirely in your browser, so nothing is uploaded to a server in the process.
If you're merging a scanned document with a typed cover letter, merge them in the order a reader would expect to see them — cover letter first, then the scanned pages. Adding the same file twice by accident shows a warning, but doesn't block you — remove the duplicate from the list if it wasn't intended.
Watch: Merge PDF in Action
- How do I combine PDF files into one?
- Add your files, drag them into the order you want, choose pages from a file if you only need some, then press Merge and download the combined PDF. It all happens in your browser.
- Does merging add a watermark?
- No. The merged file contains only your pages, with nothing stamped on them. Only its document properties name FreeDailyPro as the software that made the file.
- What doesn't carry over when I merge PDFs?
- Bookmarks do: each file gets one top-level bookmark with its own bookmarks beneath it (if you use Arrange all pages, only the per-file bookmarks are kept). Form fields do not stay fillable, and a digital signature does not stay valid because merging builds a new file.
- Can I put pages from different files in a new order?
- Yes. Add your files, then open Arrange all pages. Every page of the merged file shows as a small preview, in the order it will be written. Drag a page anywhere (even between files), or use its arrows. Each page can also be rotated or deleted. Changing the file list, a page range or a Choose pages setting afterwards starts the arrangement again, so you never merge stale pages.
- Can I merge JPG or PNG pictures with my PDFs?
- Yes. Drop JPG or PNG files in with your PDFs. Each picture becomes one page on a US Letter sheet, turned sideways for a wide picture, and it is made in your browser, not uploaded. Word files are not merged here: save them as PDF first.
- Does merging change the page size or orientation of my original PDFs?
- No — each file's own pages keep their original size and orientation exactly as they were. Merging only combines the files into one document in the order you choose; it doesn't resize, rotate, or reformat any page.
- Is there a limit to how many PDFs I can merge at once?
- There's no fixed limit on the number of files — you can add as many as you need and reorder them before merging. The practical limit is your device's own memory for very large batches, since everything processes in your browser.
- Will this work on a password-protected PDF?
- Yes. If a PDF needs a password to open, you'll be asked for it as soon as you add the file — type it in and the file is unlocked right in your browser (it's never uploaded). The merged file won't have a password. If you skip a locked file, it's simply left out of the merge.
- Are my files actually uploaded anywhere?
- No — merging runs entirely in your browser using your device's own processing power. Your PDFs never leave your device, there's no server upload involved, and nothing about their contents is visible to us at any point.
- Can I merge files with different page sizes, like some Letter and some A4?
- Yes — each page keeps its own original size in the merged document. The result is one PDF where different pages can genuinely be different sizes, which is completely normal and how the original files looked; merging doesn't force everything onto a single uniform page size.
- Will merging a lot of large PDFs on my phone cause it to freeze or crash?
- It's possible with a large enough batch — since everything processes using your device's own memory, a phone merging many large files (dozens of pages each, several files) has less headroom than a laptop. If you hit this, try merging in smaller batches (a few files at a time, then merge those results together) rather than everything at once.
- I added the same file twice by accident — do I need to start over?
- No — you'll see a warning if a duplicate is detected, but it won't block you. Just remove the extra copy from the list using its own remove button, then continue reordering and merging normally.
- What's the difference between this and Organize PDF?
- Merge PDF combines separate files into one document — its whole job is taking multiple PDFs and producing a single new one. Organize PDF works on pages within a single PDF you already have — reordering, deleting, or rotating individual pages using real page previews. If you need to combine files, use Merge; if you need to fix the page order or remove a page inside one PDF you already have, use Organize (there's a direct link to it after merging).
How to use Merge PDF
Start by dropping every PDF you want combined into the upload area — you can select them all at once from a file picker, or drag them in one at a time as you gather them. Once they're loaded, each file shows as its own card in a list. Drag any card up or down to change where it lands in the final document, or use the small up/down arrow buttons on each card if you'd rather click than drag (useful on a touchpad, or if you're merging a long list and don't want to scroll while dragging). There's no limit on how many files you can combine in one pass, though very large batches (dozens of files, or files that are individually hundreds of pages) will take longer to process since your browser is doing all the actual PDF manipulation itself.
Once the order looks right, click Merge. The tool reads every page from every file, in the order you set, and assembles them into one new PDF — it doesn't touch or modify your original files, it builds a fresh document from copies of their pages. When it's done, a Download button appears with the combined file, named automatically based on your first file's name (you can rename it after downloading, same as any other file).
To take only some pages from a file, type them in the box on its card, like 1-3,5 (leave it empty for every page). To print double-sided, tick the blank-page option so each file starts on a front side.
When to use it
The most common real use is combining a scanned cover page or signature page with the rest of a document — for instance, you print, sign, and scan just the signature page of a contract, and need to reattach it to the original multi-page PDF rather than resending the whole thing as two separate attachments. It's also useful for combining multiple scanned pages that came in as separate files from a scanner or scanning app, assembling a portfolio or report from several source documents (a cover letter PDF plus a resume PDF plus a writing sample PDF, for example), or consolidating a set of invoices or receipts into one file for an expense report.
When not to use it
If you need to reorder or rotate individual pages after combining, use Organize PDF on the merged file. If your goal is actually to compress a large merged file for emailing, run Compress PDF as a second step after merging, since merging itself doesn't reduce file size.
Tips for best results
If two source PDFs use noticeably different page sizes (a US Letter document merged with an A4 one, for example), the resulting file keeps each page at its own original size rather than forcing everything to match — this is usually fine for on-screen viewing but worth knowing if the merged file is going to print, since page sizes will visibly differ between sections. For a merge you'll need to repeat regularly with the same file names (a monthly report built from the same three source documents, say), keep those source files named consistently so it's quick to spot and re-upload the right ones each time rather than hunting through a folder.
Limitations
Password-protected PDFs are fine — you'll be asked for the password as soon as you add the file, it's unlocked in your browser, and the merged result won't have one. Very large files (hundreds of megabytes) may process slowly or use a noticeable amount of your browser's memory, since the whole operation runs in your browser tab rather than on a server; if a merge seems to hang, it's often still working on a genuinely large batch rather than stuck.
Privacy
The merge itself runs entirely inside your browser using a PDF-manipulation library loaded once when you open the page — your files are read directly from your device's memory and the combined result is generated the same way, with no upload to any server at any point in the process. Closing the tab clears everything; nothing persists after you leave the page.
How to merge PDF files
1. Drop two or more PDFs (or JPG and PNG pictures) onto the page, or click to browse. 2. Drag the file cards into the order you want, or use the arrows on each card. 3. If you only need some pages of a file, type them in its pages box, such as 1-3,5, or open Arrange all pages to move single pages. 4. Press Merge, then download the combined PDF.
Pick pages and change the order
Each file has a pages box: leave it empty for every page or type a range like 1-3,5. Arrange all pages shows every page of the merged file as a small preview in the order it will be written. Drag a page anywhere, even between files, or rotate or delete it. Each JPG or PNG you add becomes one page.
No upload, no watermark
Merging runs in your browser, so your PDFs are not uploaded: open your browser's network tab while you merge and none of your files is in a request. The merged file holds only your pages. Nothing is stamped on them and no logo or text is added; only the document properties name FreeDailyPro as the software that made the file.
What carries over and what doesn't
Bookmarks carry over: each file gets one top-level bookmark named after it, with that file's own bookmarks beneath it (if you use Arrange all pages, only the per-file bookmarks are kept). Form fields do not stay fillable, and the list warns you when a file has them. A digital signature does not stay valid, because merging builds a new file. A password-protected file asks for its password when you add it, and the merged file has no password. Every page keeps its own size.
Related PDF tools
After merging you may want to cut, shrink or reorder the result.
Next: Compress PDF
Keep the combined file small enough to share easily
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