Most people use PDFs the same way every day — open, read, close. I showed a colleague trick #9 last week and she genuinely could not believe it had been sitting in Chrome the whole time. These are not obscure hacks — they are features that exist right now in tools you already have.
1. Your browser can already do most things you need
Open a PDF in Chrome, Edge, or Firefox and look at the toolbar — there are tools for printing, rotating, downloading, and in Chrome even editing basic form fields. Most people never look past the scroll bar. On Chrome, the three-dot menu in the PDF toolbar reveals fit-to-width, two-page view, and document properties. No extension needed.
2. You can sign a PDF on your iPhone in under 30 seconds
Open a PDF in the Files app on iPhone → tap the pencil icon (Markup) → tap the + button → Signature. Draw your signature with your finger. It saves for reuse. No app, no account, completely free — and it has been there since iOS 13. You can also use Filero's Sign PDF tool in Safari for more placement control.
3. Mac Preview can do everything Acrobat Reader can — and it is built in
Honestly, Preview is better than half the paid PDF tools on the market and Mac users largely ignore it. It can annotate with text, shapes, and highlights; add a signature using your trackpad or camera; fill form fields; merge PDFs by dragging thumbnails between sidebar panels; rotate pages; crop; and password protect. Most Mac users have never opened it for anything other than viewing a photo.
4. Ctrl+F works inside PDFs
You can search for any word or phrase inside a PDF using Ctrl+F (Cmd+F on Mac) — the same shortcut as a webpage. This works in your browser, in Adobe Reader, in Preview, and in most PDF apps. If the PDF contains real text (not a scanned image), every word is fully searchable.
5. You can read any PDF offline by opening it in your browser
Drag any PDF file directly onto an open Chrome or Firefox window — the browser opens it immediately, no app needed. You can then print, download, or annotate. This works without internet access and does not require any installed software beyond the browser.
6. Compressing a PDF before scanning QR codes dramatically improves speed
Sending a PDF with QR codes (event tickets, boarding passes, coupons)? The QR code itself is just a small image — but if the PDF is 5 MB because of a high-resolution background or header image, it takes longer to download and open. Compressing the PDF to under 500 KB makes QR codes load instantly on any device.
7. Google can index the text inside PDFs
If you publish a PDF on a public website, Google reads and indexes the text inside it — just like a web page. This means your PDF's content can rank in search results. To maximise this: make sure the PDF contains real text (not scanned images), use a descriptive filename (not "document.pdf"), and add proper metadata (title, description) in File → Properties → Description in Acrobat.
8. The Tab key navigates between form fields
When filling in an interactive PDF form, press Tab to jump to the next field instead of clicking each one individually. Shift+Tab goes back. This is far faster for multi-field forms and works in every PDF reader.
9. You can extract pages from a PDF without any software
This is the one that surprises people most. In Chrome: open the PDF → Print (Ctrl+P) → set destination to "Save as PDF" → under Pages, enter the page numbers you want (e.g. "3, 5-8") → Save. Chrome creates a new PDF with only those pages. No upload, no account, completely free. For a proper visual interface with page thumbnails, Filero's Split PDF tool is the better option.
10. You can make a scanned PDF searchable for free
A scanned PDF is just a photo — you cannot search or copy text from it. But Filero's PDF to Word converter uses OCR to read the scan and extract all the text into an editable Word document. From there, you can search, edit, copy, and repurpose the content — or save back to a searchable PDF.
Frequently asked questions
Why can I not select text in some PDFs?
Two possible reasons. First: the PDF is a scanned image — there is no real text layer, just a photo of a page. Use OCR (try Filero's PDF to Word tool) to extract the text. Second: the creator applied content-copying restrictions. Check File → Properties → Security in Adobe Reader to find out which it is.
What is the best free PDF reader for Windows?
For compatibility with complex PDFs, Adobe Acrobat Reader wins — it handles encrypted files, interactive forms, and multimedia better than anything else at its price (free). If you just want something fast that opens instantly without all of Adobe's overhead, Sumatra PDF is excellent. And Edge, which is already on your machine, handles the vast majority of everyday PDFs just fine.
Do any of these tricks work on iPhone?
Several do. Trick #2 (sign in the Files app) is iPhone-specific. Trick #4 (Ctrl+F search) works as a tap-and-hold text search in most iOS PDF readers. Trick #5 (drag PDF into browser) works in Safari — just long-press a PDF link and choose Open. And all the Filero tools work in Safari without any app download.
Ready to try it?
Use Filero's free Edit PDF tool. No account needed, works on any device.
Open Edit PDF