Sejda PDF
sejda.com
Actually edits the text inside a PDF, not just annotations on top
pdfescape.com
The 2007 browser PDF editor that still fills awkward government forms.
One of the first tools that let you edit a PDF in a browser, and still one of the few that will fill and flatten a non-interactive form — the kind a council or tax office publishes as a flat scan. You can add text, whiteout, images and annotations. It looks its age, and the free tier is deliberately small.
Questions
A genuinely usable free tier with paid plans for volume or team features. The free web version only accepts files under 10 MB or 100 pages, and the better editing tools are in the paid desktop app.
Yes. PDFescape sends your input to its own servers to process it. That is fine for public material; for anything containing personal data, use one of the on-device tools instead.
The free web version only accepts files under 10 MB or 100 pages, and the better editing tools are in the paid desktop app.
Alternatives
Same category or same task, ordered by how closely they overlap.
sejda.com
Actually edits the text inside a PDF, not just annotations on top
acrobat.adobe.com
Adobe's own PDF tools, free for about a job at a time
dochub.com
Fills in a PDF form and signs it without printing anything
smallpdf.com
The tidiest PDF suite, rationed to a couple of jobs a day
stirlingpdf.io
Fifty PDF tools you can also run on your own machine in Docker
xodo.com
Reads and annotates a PDF properly, then merges or converts it