Sentiri
Instant, every time
A native Windows app that starts in under 300 ms, not a web page in disguise. Scrolling and zooming stay smooth through hundreds of pages.
Features
Everything SentiriPDF can do
Organized by the task at hand, with a checklist of every capability at the end.
Starts instantly
The first page in under 300 ms on the developer's PC.
Printing never freezes
Printers are found in the background while the dialog is already open.
Built into Explorer
Right-click to convert or view, and preview PDFs in the preview pane.
Outlook Classic
Read PDF attachments right in the reading pane.
1
Read and find
Open, move around and find things, fast.
Tabs
Every document in its own tab, all in one window. Prefer a window per file? That is one setting away.
Find as you type
Press Ctrl F and every match lights up. Enter steps to the next one.
All matches in a list
The Search panel lists each match with the words around it, by page. Click one to go straight there.
Bookmarks
Jump through long documents with their bookmarks. Add, rename and reorder your own, and they are saved in the PDF.
Go to any page
Ctrl G, type a number, and you are there.
2
Pages and converting
Put the right pages in the right order, from any file.
Rearrange pages
Rotate, duplicate, delete and drag pages into place, or extract a selection as a new PDF. Undo is always one keystroke away.
Combine anything
Drag in PDFs, documents and pictures in any mix and choose: add the pages, or open a new tab. Drag the result back out to a folder or an email.
Convert anything
Word, Markdown, HTML, text and images become a PDF the moment you open them. Or just paste: a copied picture or web page turns into pages, ready to merge.
3
Fill, mark up and sign
Finish the paperwork without printing a thing.
Fill in forms
Type into fields, tick boxes and pick from lists. A filled form saves filled in, and stays fillable.
Type anywhere, then sign
Add text anywhere on a page, with its own font, size and color. Draw your signature once and place it on every document after.
Highlight, draw and comment
Highlight or strike out text, draw lines, and see every comment in the document in one list.
4
Save, share and print
Get the finished PDF where it needs to go.
Export
Save all pages, the current one, a selection or a range, as a PDF or as images, with a preview.
Printing that never locks up
Copies, ranges, scaling, two-sided and greyscale, with a preview. Then keep working while it prints: the app never freezes on a big job.
Send by email
File, Send hands the PDF to your email program, ready to go. Recent files are one click away in the same menu.
Document properties
See the file's details, and set the title, author, subject and keywords that search tools use.
Password protection
Require a password to open a PDF, or restrict printing, copying and editing. Protected files open once you type the password.
Attachments
See the files a PDF carries inside it, and add or remove your own.
5
Right at home in Windows
Built into File Explorer and Outlook, and set up just the way you like.
Settings that make sense
Language (English or Norwegian), which side the thumbnails sit on and how files open, plus which file types and previews SentiriPDF handles.
Light or dark
Follows your Windows theme, or pick light or dark yourself. The pages stay true to the document either way.
Right-click to convert
In File Explorer, right-click any supported file: Convert to PDF, or View in SentiriPDF. Select several to combine them.
Instant previews
Read a PDF in Explorer's preview pane the moment you select it, without opening anything.
Outlook Classic
Preview PDF attachments right in Outlook Classic's reading pane.
No subscription, no AI, no cloud
Pay once and it is yours. No Sentiri account, no nag screens, and your files never leave your PC.
✓
Feature checklist
Every capability at a glance, grouped by what you want to do.
| Group | Capability | What it means |
|---|---|---|
| Read + find | Open and read PDFs | Tabs, page thumbnails, light and dark mode, password-protected files |
| Read + find | Search and navigation | Find as you type, a list of all matches, bookmarks, go to page |
| Create | Convert to PDF | Word, Markdown, HTML, text files and images (PNG, JPG, WebP, BMP, TIFF) |
| Create | Create from the clipboard | Paste pictures or web content to get PDF pages |
| Organize | Combine files | Merge PDFs, documents and pictures in any mix |
| Organize | Page operations | Rotate, reorder, duplicate, delete and extract pages, with undo |
| Mark up | Annotation tools | Text anywhere, highlight, strike out, lines, comments |
| Forms | Fill in PDF forms | Text fields, check boxes and lists; a filled form stays fillable |
| Sign | Add your signature | Draw it once or import a picture, then place it on any page |
| Output | Export and print | PDF or images, page ranges, copies, scaling, two-sided, greyscale |
| Share | Send and drag out | Send by email from the File menu, or drag the PDF to a folder or an email |
| Protect | Passwords and properties | Require a password, restrict printing and editing, edit title and author |
| Windows | File Explorer and Outlook | Right-click Convert to PDF or View, preview pane, Outlook Classic previews |
| Privacy | Local processing | Your documents are never uploaded to Sentiri or anyone else |
| Purchase | 7-day full trial | Microsoft Store; then $9.99 once for version 1 |
What SentiriPDF does not do
On purpose, so you know before you buy.
- No certificate-based digital signatures; your signature is placed as a picture
- No text recognition (OCR) for scanned pages
- No redaction of sensitive content
- No cloud storage, sharing links or online accounts
- No AI features
- No Mac, Linux or mobile version; Windows 11 only
Try it all for 7 days. Then $9.99. Once.
Every feature in the trial. No subscription, no Sentiri account, no cloud.
