Tools
Fileraz
Tools
Fileraz
Try jpg to png, compress image, pdf…
PDF tool
Fast & frictionless
Combine up to 20 files in the order you choose. The merge runs in this tab.
01
Click the dropzone or drop PDFs into it. Add up to 20 documents from this device.
Batch upload, 20-file cap
02
Use the up/down controls so the merged file reads in the order you need.
Order is the merge order
03
Hit Merge PDFs. pdf-lib concatenates the files in memory and you save the result locally.
Compiled on this device
Privacy architecture
Most free mergers upload contracts, payslips, and ID scans to a remote queue. Fileraz reads the bytes into your browser tab and writes the combined file straight back out.
Nothing leaves this device
Open DevTools → Network while you merge. No request carries the documents.
No wait queue
Speed is your CPU and RAM, not a shared server at peak hours.
No file server to breach
There is nowhere for the PDFs to sit after you close the tab.
Help & documentation
Limits, encrypted files, and how to confirm nothing is uploaded.
No. The merge runs in your browser using pdf-lib. You can confirm it yourself in the Network tab of your browser developer tools — no request carries your file.
Up to 20 files per merge, with no daily limit and no account required. Merge in stages if you have more than 20.
We do not impose one. Because every document is held in memory during the merge, the practical limit is your device RAM rather than a rule we set.
Password-protected files cannot be read without the password. Remove the protection first, then merge the unlocked copies.
Constraints
Maximum of 20 PDFs per merge.
Password-protected PDFs must be unlocked before merging.
Use the up/down controls to change merge order before combining.
Ready to merge PDFs in this tab?
Up to 20 files · 0 bytes uploaded