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SecurityTool 21 of 30 · IncludedDE: Passwort hinzufügen
Add password
AES-256, and you decide what others may do.
Lock a PDF with AES-256 and a strength meter. Choose whether others may print, copy text or edit. A clear warning says what happens if you forget it.
- On this phoneProcessed on this phone
- Airplane modeWorks in airplane mode
- No limitsNo size, page or daily limits
ADD PASSWORD · OPTIONSFICTIONAL FILE
Gehaltsabrechnung März.pdf2 pages · 0.3 MB
- Password
- ••••••••
- Allow printing
- On
- Allow copying text
- On
- Allow editing
- Off
ResultProtected with AES-256
Add passwordProcessed on this phone§ 01 · Permissions01 / 05
Open with the password. Then only what you allow.
Printing and copying text are allowed by default; editing is not. Change any of them under More options.
- Allow printing · on
- Allow copying text · on
- Allow editing · off
“If you forget this password, the file can’t be opened.” Always shown.
§ 02 · How it works02 / 05
A locked PDF in four steps
- 1Choose the file. From Home, Tools, Files, or “Add password with Dokulo” in another app’s share sheet.
- 2Set the password. Type it twice; the meter shows its strength. Set what others may do.
- 3Run. Short jobs just finish. A long one shows its progress; “Keep working” lets you leave, and a notification says when it is done.
- 4Check the result. “Protected with AES-256”, saved as a copy named “protected”.

§ 03 · Options and what comes next03 / 05
Options
- Password
- With a strength meter, typed twice
- Allow printing
- On or off
- Allow copying text
- On or off
- Allow editing
- On or off
Next
The result card suggests the next tool, so jobs chain without going back.
Share
NOTIFICATION, WHEN A LONG JOB FINISHESGehaltsabrechnung März.pdf · Protected with AES-256
§ 04 · Questions about Add password04 / 05
Questions
Is my file uploaded?
No. Add password runs on your phone, in airplane mode too. Dokulo has no server for files.
What if I forget the password?
Then the file can’t be opened, by you or by Dokulo. That is why the warning is always there.
Is the password stored anywhere?
No. It goes into the file’s encryption and nowhere else.
Is there a limit on file size or pages?
No size, page or daily limits, and no watermark.
§ 05 · Often used with05 / 05
Often used with
Remove passwordTake it off again when you no longer need it.Compress PDFCompress first, then lock.Black out (redact)Remove what nobody should see.WorkflowsMerge → Page numbers → Password, with one tap.
Add password offline, with no watermark.Get Dokulo