StackToPDF

Scan paper to searchable PDF

Works with the scanner you already have. Two-sided feeder jobs, OCR on your PC, no account and nothing uploaded.

Free · Windows 10/11 · Microsoft Store

Early access. If you hit an issue, use Help in the app to submit a support ticket.

32 seconds. Scan, check, export — nothing leaves the PC.

2026.10

What's new

Cancel a scan, undo a delete, and export pages as images. Scanners are remembered, so the app opens ready to scan.

Scanning

  • • Cancel a scan part-way through. Pages that already came through are kept.
  • • Scanners are remembered, so the app is ready in about a second. Hide ones you don't use, or add one by IP address when Find can't see it.
  • • Feeder alignment in Settings, for feeders whose scans come out shifted.

Pages

  • • Undo a delete with Ctrl+Z. Delete, Ctrl+Up and Ctrl+Down work on several selected pages at once.
  • • Combine into One Page puts the front and back of a card on one page. The ID card paper size scans just the card.
  • • Rotated pages stay searchable, and the window stays responsive while pages are read, cropped and exported.

Export

  • • Export as PDF, JPG or PNG. Several pages become one numbered image per page.
  • • A smaller-file PDF or JPG for upload size limits. The status bar shows the exported size.
  • • Copy Image puts a page on the clipboard for an email, chat or upload box.

Privacy and help

  • • Turn off anonymous usage counts or crash reports in Settings, Privacy.
  • • A tidier help panel, and new scans no longer go into OneDrive by default.
  • • Logs attached to a support ticket no longer include your Windows user name.

Documentation · Privacy policy

HP Scan went away. The paper didn't.

HP discontinued HP Scan. Most of the replacements want an account, a subscription, or your documents in someone else's cloud.

Scanner apps that only work after you create an account and upload the page

Subscriptions for a job a desktop app used to do in one click

Two-sided feeder jobs that come back as fronts only, or stop after the first page

Scan, check, export

1

Find the scanner

It looks on the network (eSCL/AirScan) and through Windows. Network scanners are remembered, so it opens ready to scan.

2

Pick how to scan

Flatbed, feeder, or feeder (duplex). 300 DPI and OCR on is the usual setup.

3

Scan

Pages show up as thumbnails. Rotate, reorder, or drop blanks. Close the app — they stay.

4

Export PDF

All pages, a range, or a list. If OCR was on, Ctrl+F works in any PDF reader.

Under a minute: scanner to searchable PDF.

Features

The scanners you already own

Finds eSCL/AirScan network scanners and anything with a Windows WIA driver. Scanners are remembered, and you can add one by IP address.

Two-sided in one pass

Feeder (Duplex) returns front then back, in reading order. Blank backs can be removed afterwards.

Searchable PDFs

Tesseract OCR runs on your machine and embeds an invisible text layer. Ctrl+F in any PDF reader.

Documents remember themselves

Pages are saved as you scan. Close the app and they are still there. The Session dropdown opens earlier stacks.

Nothing uploaded

Scanning, OCR and PDF creation stay on the PC. No account. Support tickets never attach the document.

Light, dark, or match Windows

Appearance follows the system colour mode, or lock it to light or dark.

See StackToPDF in action

Network and USB scanners

Flatbed, feeder, or two-sided. StackToPDF finds eSCL/AirScan devices on the network and anything with a Windows driver. Your last scanner and settings come back next time.

Scan a stack, check the pages

Pages show up as thumbnails as they arrive. Rotate, reorder, drop blanks, then export a searchable PDF — all pages, a range, or a list.

Light, dark, or match Windows

Appearance is in the header. Windows follows the system colour mode, including when you change it while the app is open.

Help for the screen you are on

The ? in the corner searches topics for the current screen. Browse all docs opens the full site. Support files a ticket with recent logs — not the document.

Nothing uploaded

Scanning, OCR, and PDF creation stay on the PC. No account. Support tickets never attach the document.

Read the privacy policy →

Get StackToPDF

Free. No account, no trial limit, no watermark.

Get it from Microsoft Store

Windows 10/11 · Free · No account, no trial

StackToPDF is one of the free tools we build at LTC Labs. The rest of the time we modernize and rebuild business software →

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