Every PDF tool you need,
running inside your browser.
Compress, convert, merge, sign, redact and read scans. Choose a tool and open a file — it is processed on this device and never uploaded.
Why this is different
No document is uploaded. This can be independently verified.
Comparable services transmit your file to a server and undertake to delete it subsequently. PaperJET has no server to which a document could be sent: the tools are compiled to WebAssembly and execute within this browser tab, on your own device. Nothing is queued, nothing is capped, and the work continues if you go offline after the page has loaded.
Questions
Frequently asked questions
Are documents uploaded to a server?
No. Every tool executes within your own browser using WebAssembly. The file is read from local storage by the browser and is not transmitted, so no server holds a copy of it. This may be verified by disconnecting from the network once the page has loaded; the tools continue to function normally.
Is PaperJET free to use?
Yes. All tools are provided free of charge, with no account required, no watermark applied and no file size limit.
Can a scanned PDF be processed?
Yes. The OCR tool reads the text from a scan and can return the same scan with an invisible text layer applied, so that the document appears unchanged while becoming searchable and available for copying.
Can a PDF be converted to Word or Excel?
Yes, where the PDF already contains text. Where the file is a scan, the OCR tool should be used instead; the interface will indicate which case applies.
Is there a file size limit?
No. As processing is performed on your own device rather than on a server, the constraint is the available memory of that device rather than an upload cap.
Compress a PDF to under 500 KB
500 KB is the limit bank, insurance and university portals tend to settle on, and it is generous enough that most documents of several scanned pages reach it without visible loss. Because there is room to spare, PaperJET usually lands on one of its lighter settings, and the result comes back close to what you started with.
How to compress a PDF to under 500 KB
- Open the PDF. The 500 KB limit is already selected.
- Compress.
- Save. If the reduction was not needed, you will be told the file already fits.
Ten or more scanned pages can sit under 500 KB at a resolution that still prints cleanly. This is the first limit at which a full application packet is realistic rather than a squeeze.
If the portal wants one file and you have several, merge them and then compress the result. Compressing each piece separately and merging afterwards gives a larger file, because each pass leaves its own overhead.
Everything, including checking whether the file already fits, happens on this device. There is no round trip and no queue, so large documents are limited by your own machine rather than someone else's server.
Questions about the 500 KB limit
Is the file uploaded anywhere?
No. Compression runs in this browser tab. Nothing is sent, stored or logged, and closing the tab is all the cleanup there is.
How many pages fit under 500 KB?
Ten or more scanned pages is realistic, though it depends on what is on them. Dense photographs take more room than plain typed text.
Will the document still be searchable?
Yes, in almost all cases. Flattening pages into images is a last resort near the floor, and 500 KB rarely gets close to it, so the text layer survives.
Is there a file size limit on what I can compress?
Only what your own device can hold in memory. There is no server-side cap, because there is no server.