Send a file here from another app
A PDF that arrived in a text message, an email, or a folder on your computer can go straight into these tools without being saved, found and picked again. Install the site and it turns up in your phone's share sheet and in the Open with list on your computer, next to everything else that opens a PDF.
Open it with
Nearly everything here works on a PDF. Two of the tools work on a photograph instead, because a picture is what they are for, so that is where a photo out of a camera roll goes. When a file actually arrives, the box above names the ones that will take it rather than leaving you to find out by opening one.
How to put this site in the list
Either way it starts the same: install the site. It is the same install for both, and it is also what makes everything here work with no connection.
On a phone
Open this site on your phone and add it to your home screen. On Android that is the Install item in the browser menu. From then on, sharing a PDF or a photo out of any app shows this site in the list, and picking it lands the file here ready to open. A PDF opens in any of the PDF tools. A photo opens in the two whose input is a picture, and the page names them when the file arrives, so you are not left opening tools to find out which one wanted it.
This is an Android and Chrome behavior. An iPhone will not offer a website in its share sheet, whatever the website does, so on an iPhone you save the file first and choose it in the tool. That is worth saying plainly rather than letting somebody hunt for a thing their phone does not do.
On a computer
Install the site from the address bar in Chrome or Edge. After that, right click any PDF in Explorer or Finder, choose Open with, and this site is in the list. The first time you do it the browser asks once whether to let the site open PDFs, and after that it is just there. It does not become the default for PDFs unless you go and set it as one, which is deliberate: nothing here should quietly take over a file type.
Safari and Firefox do not do this, in the same way an iPhone does not do the share sheet. In those, open the tool and choose the file.
Several files at once
Select a folder of PDFs, open them all with this site, and they go into the job packet instead of into one tool, because that is what several documents arriving together usually are: one handover. Put them in order there, add a cover sheet, and build a single PDF. One file on its own goes straight to the tools, as it always did.
And the same thing going out
Every tool here finishes by offering Send it next to the download, wherever the browser has a share sheet to hand the file to. It goes to the general contractor in your messaging app or your mail app without a download folder being involved at all, and it covers whatever the tool made: one signed waiver, a zip of thirty stamped drawings, a folder of photos turned into JPGs.
This direction is not Android only, unlike the one above. An iPhone will not put a website into its own share sheet, but it will let a website open one. Most desktop browsers have no share sheet at all, and there the button is simply not there and the download works as it always has.
Both directions work the same way and for the same reason: the file never leaves your device except when you pick the app it goes to.
What happens to the file here
A file that arrives here is written into this browser's own storage on your own device, nowhere else. There is no server on this site to send it to, which is also why the whole thing keeps working with no signal. It is deleted the moment you use it and the moment you press Forget it, and it expires two hours after it arrived. A browser cannot run a clock while it is shut, so an expired file is not offered again and is deleted outright by the next page here that looks for it.
The ceiling is 60 MB for one file, because a file arriving from another app has to be written into this browser's storage before the tool page is even open. Choose the file inside the tool instead and there is no ceiling at all, since the tool reads it and hands it straight back without keeping it. The one exception is the job packet, which keeps the documents on purpose and keeps the same ceiling with them, up to forty of them.