Fill & Flatten Forms
Fill in interactive forms and flatten them so they can no longer be edited.
Runs in your browser (WebAssembly)
Zero server storage
Your files are never written to disk.
In-memory processing
In-Memory Stream / Client WASM: processed in your browser's memory.
100% privacy & security guarantee
No server uploads; your files are never shared with anyone. How it works
This tool is coming soon
We are building it with the same privacy-first architecture as the rest of OPPE.
Planned: runs entirely in your browser, so your files will never leave your device.
Available now
Merge PDF
Combine multiple PDFs into one file in the order you choose. Drag & drop to sort.
Ready
Split PDF
Split by page ranges or turn every page into a separate PDF.
Ready
Delete & Extract Pages
Remove unwanted pages or extract the selected ones into a new PDF.
Ready
Organize & Rotate
Reorder pages by dragging and rotate them by 90°, 180° or 270°.
Ready
Crop PDF
Trim the page margins manually.
Ready
Page Numbers
Add page numbers with your choice of position, font, size and format.
Ready
Watermark
Stamp text or a transparent logo/image over your PDF.
Ready
Compress PDF
Reduce the file size with low, medium or high compression.
Ready