Guides
Guides, tips, and answers to common PDF questions.
August 15, 2026 · 3 min read
How to merge or combine PDF files without Adobe
How to merge PDF files and combine PDFs without Acrobat on Windows, Mac and iPhone, including how to merge two PDF files in under a minute, free.
August 15, 2026 · 3 min read
How to Reduce PDF File Size Without Losing Quality (2026)
Reduce PDF size without losing quality: keep text selectable with a free browser tool, Mac Preview or Word's minimum size export. DPI guide, no upload.
August 15, 2026 · 2 min read
Is It Safe to Convert a PDF Online? What Actually Matters
Converting a PDF online is only as safe as whether the file is uploaded. How to tell, what the 2025 FBI warning was about, and a private alternative.
September 4, 2026 · 2 min read
Is Online2PDF Safe? What Happens to Your File (2026)
Online2PDF is a real converter, but your PDF goes to its servers. What its policy says about storage, who should avoid it, and a no-upload alternative.
September 3, 2026 · 4 min read
Merge PDF Without Uploading? “No Sign-Up” Isn’t “No Upload”
Merge PDF without uploading? A free tool that says no sign-up may still upload your file. Here is a two-minute Network-tab check to run first.
September 17, 2026 · 5 min read
Does iLovePDF Steal Your Data? What Its Policy Says
Does iLovePDF steal or sell your data? No, but it uploads every file. What its policy says it keeps, for how long, and when that matters.
October 18, 2026 · 4 min read
Is Smallpdf Safe? What Their Own Pages Say About Your Files
Is Smallpdf safe? It is a real company that says it deletes free-tool files after one hour. It still uploads your PDF. See what its own pages commit to.
October 18, 2026 · 4 min read
Compress PDF Without Losing Quality: What You Can Keep
Compress a PDF without losing quality where it counts: keep text sharp and selectable, and choose how much the images give up. Free, in your browser.
October 22, 2026 · 6 min read
Is Smallpdf HIPAA compliant?
Is Smallpdf HIPAA compliant? It makes no such claim, a blog page says it is not, and we found no BAA. What HIPAA asks of a vendor and how to check.
October 22, 2026 · 6 min read
Is iLovePDF Safe for Sensitive Documents?
Is iLovePDF safe for sensitive documents? Its files are deleted after two hours, signed documents are kept for years. A guide by document type.
October 22, 2026 · 6 min read
Can you merge a PDF without losing its digital signature?
Merge PDF without losing a digital signature? You cannot: a merge copies pages into a new file. Why it breaks, three workarounds, and our warning.
October 22, 2026 · 7 min read
PDF too big to email: the limits and the fixes
PDF too big to email? Gmail, Outlook, iCloud and Kindle limits as read in October 2026, why your real limit is lower, and which size to compress to.
October 22, 2026 · 6 min read
Is PDF24 safe to install? Creator vs the online tools
Is PDF24 safe to install? PDF24 is two products with different file handling. Here is what its own pages say, what we could not verify, and a checklist.
October 22, 2026 · 6 min read
Open source and self-hosted iLovePDF alternatives, compared honestly
An iLovePDF alternative that is open source or self-hosted: Stirling-PDF, PDFsam, qpdf, OCRmyPDF and more, with licences, limits and fit.
October 30, 2026 · 7 min read
How to check whether any PDF tool uploads your file
Is it safe to upload a PDF online? Check any PDF tool yourself in two minutes with the Network tab and an offline test, and what the result can prove.
October 30, 2026 · 6 min read
How to compress a PDF for email on an iPhone without an app
Compress a PDF for email on your iPhone with Safari and no app. Steps, which size to pick, Mail Drop and Gmail limits, and what to do if it stays large.
October 30, 2026 · 7 min read
Is Zamzar safe? Is PDF2Go safe? Two audits, one post
Is Zamzar safe? Is PDF2Go safe? We read both privacy policies: retention windows, who runs them, what is not stated, and when each is a fine choice.