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Irfan PDF 1.7.0 for Windows

Windows 10 (1809 or newer) or Windows 11, 64-bit. Every package below was hashed and signature-checked on 2026-10-16 — the values on this page are measurements, not estimates.

Free · no account · no telemetry SHA-256 measured 2026-10-16

All three were rebuilt on 2026-10-22 and verified by running them

The hashes and sizes below were measured on the files as they sit in the release folder today, and each one was actually put through its paces: the installer was run silently into a clean folder (self-test PASS 20 / FAIL 0, then uninstalled), the Professional package was extracted and self-tested with its own bundled runtime, and the source package was extracted and self-tested with the PC’s Python. Those builds also carry the Stop fix described in the release notes — Stop is honoured between OCR pages and before the output is written, and the PDF AI Analyst’s Stop works.

RecommendedVerified

Windows installer

IrfanPDF_Setup_1.7.0.exe

Version: 1.7.0
Release date: 2026-10-11 (packages rebuilt 2026-10-22)
File size: 115,995,494 bytes (110.6 MiB)
Type: Inno Setup 6 executable · per-user install (no administrator rights required)
Windows: Windows 10 (1809 or newer) or Windows 11, 64-bit
Digital signature: Not signed (Authenticode: NotSigned)

SHA-256

C57968BA6397622A01BE912504D8D2CEABBACCA4F1074ED767C87EDD46D0A7C5

Bundles its own Python runtime — nothing else to install. Adds Desktop/Start Menu shortcuts, .pdf association and an uninstall entry. Verified 2026-10-22: silent install to a clean folder, self-test PASS 20 / FAIL 0, a Stop on a 12-page scan ended the job cancelled with no output file, and the uninstall left no installed files behind.

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Verified

Portable package (self-contained)

IRFAN-PDF-PROFESSIONAL.zip

Version: 1.7.0
Release date: 2026-10-11 (packages rebuilt 2026-10-22)
File size: 155,787,006 bytes (148.6 MiB)
Type: ZIP archive · extract and run START-APPLICATION\START-APPLICATION.bat
Windows: Windows 10 (1809 or newer) or Windows 11, 64-bit
Digital signature: n/a (ZIP archives are not Authenticode-signed)

SHA-256

02B95E2487EBB441EF841D5AE671E97C3AE9AF0D2176CE835B4906E99897F4D9

4,452 files (365.6 MiB extracted) including Application\runtime (4,195 files) and the full test suite — runs on a PC that has never had Python installed. Verified 2026-10-22 from the extracted package: self-test PASS 20 / FAIL 0 with its own bundled runtime, and a Stop on a 12-page scan ended the job cancelled with no output file.

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Verified

Source package (needs Python)

IrfanPDF_Portable.zip

Version: 1.7.0
Release date: 2026-10-11 (packages rebuilt 2026-10-22)
File size: 7,705,955 bytes (7.3 MiB)
Type: ZIP archive · application sources only (no bundled runtime)
Windows: Windows 10/11, 64-bit, with Python 3.10 or newer and requirements.txt
Digital signature: n/a (ZIP archives are not Authenticode-signed)

SHA-256

72EAA80178D867372872658F5AFCFC38BC40101B60BD62D0BFC936788BA8FD98

The application sources: 78 files, no bundled Python, so it needs the PC's own Python 3.10+ and one `pip install -r requirements.txt` (the README inside says exactly that, and the launcher sits in the folder root). Verified 2026-10-22 from the extracted package: self-test PASS 20 / FAIL 0. Pick this only if you already have Python; otherwise use the installer or the Professional package.

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Verify what you downloaded

On Windows you can recompute the hash with PowerShell: Get-FileHash .\IrfanPDF_Setup_1.7.0.exe -Algorithm SHA256 and compare it with the value above. The installer is an Inno Setup executable and is not Authenticode-signed — a signature would show as NotSigned even on the genuine file. Code signing is listed as a planned item, not a present one.

Guides

Everything needed to install, update and remove the application.

Installation guide

Requirements, installer steps, portable extraction, first-run health check.

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Update guide

Moving from an earlier version to 1.7.0 without losing your library.

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Troubleshooting

Nothing starts, antivirus interference, port conflicts, OCR problems.

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Uninstall guide

Remove the app cleanly — and what happens to your data folder.

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Supported Windows versions

• Windows 10 (1809 or newer) or Windows 11, 64-bit
• No Python, no pip, no internet connection, no account, no cloud service required
• About 400 MB of disk for the self-contained packages (measured 365.6 MiB expanded, of which the bundled runtime is 355.8 MiB)
• Per-user install: no administrator rights needed for the EXE installer

Source: dist\IRFAN-PDF\INSTALLATION-GUIDE.md and installer\irfan_pdf.iss (ArchitecturesInstallIn64BitMode = x64compatible, PrivilegesRequired=lowest). Sizes measured from the package itself on 2026-10-22; the installer declares no minimum Windows version of its own.