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Stirling PDF

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Your own private PDF workbench on a VPS — 50+ tools, no login, no uploads

language Web & CMS

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info Overview

Stirling PDF is a self-hosted PDF toolkit that runs entirely on your own server, giving you 50+ PDF operations in a single web app. You can merge, split, rotate, reorder pages, compress, convert PDFs to and from images and Office formats (Word, Excel, PowerPoint via LibreOffice), run OCR to make scans searchable (via Tesseract), add or remove passwords and permissions, sign, watermark, edit metadata, flatten, repair and compare files — all without a single document ever leaving your machine.

Unlike cloud tools such as iLovePDF, Smallpdf or Adobe Acrobat online, nothing is uploaded to a third party, which makes it ideal for contracts, IDs, financial and legal documents. There is no account and no login: Stirling PDF is a stateless tool suite you simply open in your browser. Valebyte deploys it in one click on port 8080 — you open the URL and start working immediately, no signup, no per-file limits and no watermarks on the output.

check_circle Features

check 50+ PDF operations in one web app — merge, split, rotate, reorder, compress and more
check Convert PDFs to and from images and Office formats (Word, Excel, PowerPoint) via LibreOffice
check OCR turns scanned PDFs into searchable, selectable text using Tesseract
check Add or remove passwords, permissions and watermarks; sign and stamp documents
check Everything runs on your own server — files never leave your machine, unlike iLovePDF or Smallpdf
check No account, no login, no per-file limits and no watermarks on the output
check Edit metadata, add page numbers, flatten, repair and compare PDFs
check Deployed by Valebyte in one click on port 8080 — open the URL and use it instantly

quiz Frequently Asked Questions

Is Stirling PDF a good self-hosted alternative to iLovePDF or Smallpdf? expand_more

Yes. Stirling PDF covers the same everyday tasks — merge, split, compress, convert, OCR and more — with 50+ operations in total. The key difference is that every file is processed on your own server, so your documents never touch a third-party cloud.

Is there a login, and are my files private? expand_more

There is no login and no account: Stirling PDF is a stateless tool suite you just open in the browser. Every document is processed locally on your own server and is never uploaded anywhere, which makes it safe for contracts, IDs and financial or legal files.

How much RAM does Stirling PDF need? expand_more

2 GB of RAM is the sensible minimum. Basic operations like merge, split and compress are light, but OCR and Office conversions use LibreOffice and Tesseract, which are more CPU and RAM intensive. Very large batch OCR benefits from additional vCPU.

What can Stirling PDF actually do? expand_more

It offers 50+ operations: merge, split, rotate, reorder pages, convert PDFs to and from images and Office documents, OCR, compress, add or remove passwords and permissions, sign, watermark, add page numbers, edit metadata, flatten, repair and compare PDFs.

Can I use my own domain? expand_more

Yes. Valebyte runs Stirling PDF on port 8080 on your VPS, and you can point your own domain at it and put it behind HTTPS. It then becomes a private PDF workbench that you and your team can open from any browser.

Does Stirling PDF upload my documents anywhere? expand_more

No. Everything happens on your own server — there is no third-party upload, no external API and no telemetry of your file contents. This is the core reason to self-host it instead of using an online PDF service.