Signaturepdf
Signaturepdf is open-source web software for signing PDFs, organizing pages, editing metadata, and compressing files.
About Signaturepdf
Signaturepdf is open-source web software under AGPL V3 for signing PDFs alone or with others, organizing pages, editing metadata and compressing files. Organizing includes merge, sort, rotate, delete and extract pages. It can be self-hosted on Debian/Ubuntu, Docker, Alpine Linux or from a package, or used through instances listed in the repository. Multi-person signing requires PDFs to be stored on the server, with optional encrypted storage when gpg is installed.
Key features
- Sign PDFs alone or with multiple people
- Merge, sort, rotate, delete and extract PDF pages
- Edit PDF metadata fields
- Compress PDF files
- Store shared PDFs with configurable retention period
- Optional server-side encryption for stored PDFs
Best for: People who need self-hosted or community-hosted software to sign PDFs and manage pages, metadata and compression.
Good for
- Open-source software under the AGPL V3 license
- Supports single-person and multi-person PDF signing
- Can be self-hosted or used on listed public instances
Watch out for
- Multi-signature mode requires PDFs to be stored on the server
- Digital signature use depends on poppler-utils, libnss3-tools and certificate setup
- Self-hosting requires configuring storage paths and server permissions
Signaturepdf at a glance
- Category
- Online Tools › PDF & Document Tools
- Type
- Open-source project
- Pricing
- Not confirmed. Check the site
- Open source
- Yes · Source code
- Language
- English
- Last checked
- Oct 6, 2026 · Online when checked
- Listed
- Oct 5, 2026
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Signaturepdf FAQ
Does multi-person signing require server storage?
Yes. Multi-signature mode requires PDFs to be stored on the server, and it is optional rather than required for the software to work.
Can stored PDFs be encrypted?
Yes, when gpg is installed and PDF_STORAGE_ENCRYPTION is set to true, PDFs can be stored encrypted with a symmetric key known only to the signers.
Where can the software be used without installing it?
The repository lists public instances, including pdf.24eme.fr, pdf.libreon.fr, framapdf.org and others.
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