Windows desktop & browser · local processing
A PDF editor that keeps your documents on your own machine.
CompendiumPDF edits, builds, converts, redacts and signs PDF documents. Everything happens on the computer in front of you — opening, editing, OCR, conversion and redaction never send your file anywhere. One license covers five people for $25 a month.
- Edit
- Organize pages
- Forms
- Offline OCR
- Word & Excel export
- True redaction
- E-signature
5 users per license · read-only guarantee if you cancel · Compare with Acrobat
What is CompendiumPDF?
CompendiumPDF is a PDF editor for Windows and the browser that reads, edits, builds, converts, redacts, protects and signs PDF documents on your own computer. OCR, conversion and redaction run locally, so your files aren’t uploaded anywhere. One license costs $25 a month and covers 5 named users.
What it does
The PDF work most teams actually do
Edit and build
Change text in place, add text and images, headers, footers, watermarks, backgrounds and Bates numbering. Build PDFs from images or from scratch.
Organize pages
Insert, delete, duplicate, extract, rotate and reorder pages. Split one document into many or merge many into one.
Forms
Fill existing forms and build new ones with text fields, check boxes, radio buttons, dropdowns and signature fields. Flatten when you’re done.
Convert
Export to Word, Excel, plain text and images. Build PDFs from images. Everything runs locally.
Protect
AES encryption with open and permissions passwords, granular permissions, metadata sanitizing, and redaction that genuinely removes content.
Sign
Request signatures through Compendium Sign, with a hash-chained audit trail and HIPAA and 21 CFR Part 11 profiles.
The editor
One ribbon for the whole document
The same engine on the Windows desktop and in the browser. These are screenshots of the running software with a sample document.
Open, read, edit and print.
Change text in place and add text, images, headers, footers and watermarks. Viewing, printing and annotating are always available.
The editor with a sample document open.
Put the pages in order.
Insert, delete, duplicate, extract, rotate and reorder pages. Split one document into many or merge many into one.
Pages: rotate, delete, duplicate, extract, reorder, crop and relabel.
Get the content out.
Export to Word, Excel, plain text and images, and make scans searchable with offline OCR.
Convert: Word, Excel, text, images and searchable OCR.
Who it’s for
Built for documents you can’t upload
Legal & litigation
Production sets, numbered and redacted
Bates numbering across a whole production, redaction that removes the words, and signatures through Compendium Sign.
Bates numbering →Healthcare & PHI
No third party in the loop
Editing, OCR, conversion, compression and redaction all happen in the application on your computer.
PHI & privileged documents →Teams paying for Acrobat Pro
About $5 per person
One license covers 5 people for $25 a month. See exactly where it matches and where it doesn’t yet.
Compare with Acrobat →Straight answers
What it does today, and what it doesn’t
CompendiumPDF covers about 43% of Acrobat Pro’s published feature list, concentrated in the work most teams actually do.
Built and working
- Edit text in place; add text, images, headers, footers and watermarks
- Insert, delete, extract, rotate, reorder, split and merge pages
- Fill and build forms, then flatten
- Offline OCR in English, Spanish, French and German
- Export to Word, Excel, plain text and images
- AES encryption, permissions and metadata sanitizing
- Redaction that genuinely removes content
- Bates numbering
- E-signature through Compendium Sign
Not built yet
- Accessibility tagging, PDF/UA Not yet
- Prepress, preflight, PDF/X Not yet
- Batch automation Not yet
- Importing Office files to PDF Not yet
- Convert to PowerPoint Not yet
- Image editing Not yet
If you need those, Acrobat Pro is still the better tool — the full comparison is here.
Pricing
What it costs, all of it
One license covers 5 named users. Prices below are for a single license.
| Term | Discount | Total | Effective monthly | Per user |
|---|---|---|---|---|
| Monthly | — | $25 | $25/mo | $5/mo |
| 1 year | 5% | $285 | $23.75/mo | $4.75/mo |
| 2 years | 10% | $540 | $22.50/mo | $4.50/mo |
| 3 years | 20% | $720 | $20/mo | $4/mo |
| 4 years | 30% | $840 | $17.50/mo | $3.50/mo |
| 5 years | 40% | $900 | $15/mo | $3/mo |
The AI assistant — document summaries, questions about a document, drafting help and image generation — is $5 per user per month, and is optional. You only pay for the people who turn it on.
Only need signatures?
Compendium Sign handles e-signature on its own
CompendiumPDF sends documents for signature through Compendium Sign. If signing is all you need, start there; for the rest of the suite, see The Compendium Company.
Questions, answered
Does CompendiumPDF upload my documents?
No. Opening, editing, OCR, conversion, compression and redaction all run on your own computer. The only time a document is transmitted is if you explicitly send it for signature through Compendium Sign.
What does it cost?
One license is $25 a month and covers five named users, which works out at about $5 per person. Prepaying a year takes 5% off, and five years takes 40% off. An optional AI assistant is $5 per user per month.
Does it work offline?
Yes. The Windows application is fully offline. It checks its license every 45 days, and if it can’t reach the internet it keeps working normally within that window.
What happens if I stop paying?
The application drops to read-only. You can still open, read, search, annotate and print every document you have. You’re never locked out of your own files.
Can I use it in a browser?
Yes. There’s a browser version that runs the same engine, so the PDF is still processed on your device rather than on a server.
Is CompendiumPDF a drop-in replacement for Acrobat Pro?
Not for every workflow. It covers about 43% of Acrobat Pro’s published feature list, concentrated in editing, page operations, forms, OCR, redaction, conversion and signature. It doesn’t yet do accessibility tagging, prepress and preflight, batch automation or Office-format import.
How is redaction different from drawing a black box?
A black box leaves the original text in the file, where it can still be extracted. CompendiumPDF converts the affected pages to images so the underlying text is destroyed rather than hidden.
Which languages does the OCR support?
English, Spanish, French and German.
What does the installer include?
One installer covers CompendiumPDF, CompendiumWP and Compendium LECX, and it installs without administrator rights.
How much is the AI assistant?
The AI assistant (document summaries, questions about a document, drafting help and image generation) is $5 per user per month and optional. You only pay for the people who turn it on.
Get started
Buy a license and set up your account in one pass, then download the installer. One installer covers CompendiumPDF, CompendiumWP and Compendium LECX, and installs without administrator rights.
$25 a month · 5 users per license · read-only, never locked out, if you cancel