DoraPDF / Blog

Guides & tips

Practical how-tos for PDFs, images, documents and student life.

2 min read

How to Convert PDF to Word for Free (Phone & PC)

A step-by-step guide to turning a PDF into an editable Word document for free, without sign-up or watermarks.

2 min read

How to Compress a PDF for Email (Under 1 MB)

Shrink large PDF files so they fit email and upload limits — free, private and without losing readability.

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How to Merge PDF Files into One (Free, No Sign-up)

Combine multiple PDFs into a single file on your phone or computer in a few clicks.

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How to Scan Documents to PDF With Your Phone (No App Needed)

Use your phone camera to create clean, cropped, CamScanner-style PDF scans right in your browser.

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HEIC to JPG: How to Convert iPhone Photos (Free)

Can't open iPhone photos on Windows or upload them to a website? Here's how to convert HEIC to JPG in seconds.

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APA vs MLA vs Harvard: Citation Styles Explained for Students

A simple guide to the three most common referencing styles, with examples of in-text citations and reference lists.

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How to Reduce Image Size Without Losing Quality

Make photos smaller for websites, email and upload forms while keeping them sharp.

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JPG vs PNG vs WebP: Which Image Format Should You Use?

The differences between the three most common image formats and when to use each one.

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How to Make a QR Code for Your Business (WiFi, WhatsApp, Links)

Create free QR codes that let customers join your WiFi, message you on WhatsApp or open your website.

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How to Calculate Your GPA (With Easy Examples)

Understand grade points and credit hours and calculate your semester GPA step by step.

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How to Password Protect a PDF (and Remove a Password)

Lock sensitive PDFs with a password before sharing them — and unlock your own PDFs when you no longer need protection.

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15 Free Online Tools Every Student Needs in 2026

The free browser tools that save students hours every week — from PDFs and scans to GPA and citations.