Merge & Split PDF
Join several PDFs into one, keep only the pages you need, delete pages, or split a long PDF. Nothing is uploaded.
Merge & Split PDF
How it works
Choose your PDFs and Calvo builds the new file on your device. Merging joins files in the order you set. Splitting lets you pick pages from thumbnails or by typing ranges, remove pages you do not need, or cut a PDF into several smaller files. The text and quality of your pages stay exactly as they were, because pages are copied, not re-compressed.
Useful for
Joining assignment pages and certificates into one file for a portal, sending only the pages that are needed, removing a blank or wrong page, and splitting a long scanned file into separate documents.
FAQ
How do I merge PDF files?
Open the Merge tab, choose two or more PDFs, put them in the order you want with the arrow buttons, and tap Merge PDFs. Then download the combined file.
Can I use only some pages from each PDF when merging?
Yes. Type the pages in the box next to a file, for example 1-3, 5. Leave it empty to use every page of that file.
How do I extract pages from a PDF?
Open the Split tab, choose your PDF, pick Extract pages, then tap the page thumbnails or type a range like 3-7. Tap Create PDF to get a new PDF with only those pages.
How do I delete pages from a PDF?
In the Split tab, choose Remove pages, select the pages you do not want, and tap Create PDF. The new PDF keeps all the other pages.
Can I split a PDF into several files?
Yes. Choose Split into several files and then split by every page, by every N pages, or by your own ranges such as 1-3, 4-6. You can download each file or all of them together as a ZIP.
Are my PDFs uploaded to a server?
No. Merging and splitting happen inside your browser, so your documents never leave your phone or computer.
Why can't I open my PDF?
The file may be password protected or damaged. Remove the password first, then try again. Files over 80 MB are not accepted so your browser does not run out of memory.