The complete PDF resource hub. Free tools to compress, merge, split, rotate, repair, and convert PDF files — plus in-depth guides, common error fixes, and format references. Everything you need to work with PDF documents.
PDF Tools
Fast, free, and private — every tool runs right in your browser.
Compress PDF
Compress PDF files online to reduce file size without losing visual quality. Optimises images and streams — free, private, runs entirely in your browser.
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JPG to PDF
Convert one or more JPG images to a PDF document online. Combine multiple photos into a single PDF in seconds — free and private.
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Merge PDF
Merge multiple PDF files into one online document. Drag to reorder pages, combine in seconds — free, private, browser-based.
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PDF to JPG
Convert PDF pages to high-quality JPG images online. Each page becomes a separate JPG — free, private, browser-based.
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Repair PDF
Repair corrupted or damaged PDF files online. Recovers unreadable documents and fixes structure errors — free, private, no upload required, runs in your browser.
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Rotate PDF
Rotate PDF pages 90, 180, or 270 degrees online. The fix is permanent — not a viewer preference. Free and browser-based.
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Split PDF
Split a PDF into individual pages or extract a specific page range online. Free, private, and browser-based — no upload required.
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Common PDF Problems
Diagnose the issue, then fix it with the right tool.
PDF Always Opens on the Wrong Page
Every time you open a PDF it jumps to a specific page instead of the beginning, because an initial view page number is embedded in the file.
PDF Page Numbers Are Wrong After Merging
After merging multiple PDFs, the page numbers in the document don't match the actual pages — they restart at 1 or show the original numbering from individual files.
PDF Shows Wrong Characters or Squares Instead of Text
Text in your PDF appears as squares, question marks, or completely different characters because the fonts are missing or not embedded.
PDF Text Cannot Be Selected or Copied
You can't highlight, select, or copy text from a PDF — it behaves like an image even though it looks like text.
PDF Has Blank Pages When Converted From Word
When you export a Word document to PDF, some or all pages appear blank in the resulting PDF.
Scanned PDF Is Too Large — How to Reduce Scanned PDF Size
A PDF created by scanning physical documents is extremely large — often 5–50 MB per page — and needs to be reduced for emailing or uploading.
PDF Cannot Be Edited — Content Is Locked
When you try to edit a PDF, all editing tools are greyed out or disabled — the document has editing restrictions applied.
PDF Won't Print Correctly
The PDF prints blank pages, missing content, garbled text, wrong orientation, or cuts off the edges.
PDF Is Password Protected — Cannot Open
A PDF requires a password you do not have, cannot remember, or were never given.
PDF Text Is Not Selectable or Searchable
You cannot highlight, copy, or search text in the PDF — every page is an image rather than real text.
How to Combine Multiple Images Into One PDF
You have several image files (JPG, PNG, or a mix) that need to be combined into a single PDF document.
PDF Pages Are in the Wrong Order
Your PDF pages are scrambled, reversed, or out of sequence after merging, scanning, or exporting.
PDF File Too Large to Upload or Email
Your PDF exceeds the file size limit for an email attachment, government form, or online portal.
PDF File Corrupted or Damaged
Your PDF opens with errors, shows garbled content, or refuses to open entirely.
Deep-Dive Guides
Understand the why behind every fix.
What Is a PDF File and How Does It Work?
PDF is the world's most used document format — but most people have no idea what is actually inside one. This explains how PDFs work and why they behave the way they do.
How to Compress a PDF Without Losing Quality
Not all PDF compression is equal. This guide explains the four compression techniques inside a PDF engine and exactly which one to use to preserve text, graphic, and image quality.
PDF Too Large for Email? Step-by-Step Fix
Every major email provider caps attachments at 10–25 MB. If your PDF is over the limit, here are three fast solutions ranked by ease and quality impact.
How to Convert JPG Images Into a PDF Document
Turn one or multiple JPG images into a properly formatted PDF — in the right page order and at the right quality. This guide covers single-image and multi-image workflows.
How to Convert PDF Pages to JPG Images
Converting a PDF to JPG images is straightforward, but the DPI setting determines whether your output is crisp or blurry. This guide explains everything you need to know.
How to Fix Sideways or Upside-Down PDF Pages
A PDF with rotated pages is a surprisingly common problem — especially with scanned documents. Here is how to fix it permanently, not just in your viewer.
How to Split a PDF Into Separate Pages or Sections
Learn how to extract individual pages, chapter ranges, or specific sections from any PDF — and when splitting is better than compressing.
How to Combine Multiple PDF Files Into One Document
Merging PDFs is one of the most common document tasks. This guide covers how to combine files correctly, control page order, and avoid the pitfalls that corrupt merged documents.
How to Reduce PDF File Size for Email and Uploads
PDF too large to send? This guide explains every compression technique available — from online tools to export settings — and shows which one to use for each scenario.
Why PDF Files Get Corrupted: Causes, Diagnosis & Recovery
A deep dive into the root causes of PDF corruption, how to diagnose a damaged file, and the best recovery strategies — from free tools to version history.
PDF How-To Guides
Step-by-step walkthroughs for common pdf tasks.
How to Split a PDF Into Separate Pages or Sections
Extract specific pages from a PDF or split a large document into smaller parts — free, online, and without any software.
How to Reduce PDF File Size Without Losing Quality
Make your PDF smaller for email, upload, or storage without making text unreadable — free methods with and without software.
How to Merge PDF Files (Free, Online, No Software)
Combine multiple PDF files into one document in seconds using our free online PDF merger — no installation needed.
How to Extract Images From a PDF
All the ways to pull images out of a PDF file — from simple copy-paste to extracting full-resolution embedded images.
How to Split a PDF and Reorder Pages
Extract specific pages from a PDF, reorder them, and reassemble into a new document. Complete step-by-step guide with free browser-based tools.
How to Compress a PDF for a Government Portal Upload
Government portals often have strict file size limits of 2–5 MB. This guide shows you the exact steps to get your PDF under any limit without losing readability.
How to Repair a Corrupted PDF: Step-by-Step Guide
Your PDF produces an error, shows blank pages, or refuses to open. This guide walks through every recovery method from fastest to most thorough.
How to Merge Scanned Documents Into a Single PDF
You have multiple scanned pages — some JPGs from your phone, some PDFs from a scanner. Here is how to combine them all into one clean, properly ordered PDF.
PDF Comparisons
Side-by-side breakdowns to help you choose the right format or tool.
Merge PDF vs Combine PDF vs Append PDF: What's the Difference?
Understand the difference between merging, combining, appending, and assembling PDFs — and which operation you actually need.
Compress PDF vs Split PDF — Which Should You Use?
When a PDF is too large, you have two solutions: compress it smaller or split it into parts. This guide tells you which is right for your situation.
PDF vs DOCX — Which Format Should You Use?
PDF and DOCX both store documents but for completely different purposes. Here is exactly when to use each and when to convert between them.
Online PDF Tools vs Desktop Software — Which Is Better?
You can fix PDF problems using a browser-based tool or installed software. Each has real advantages. This comparison helps you choose the right one for your situation.
PDF File Formats
Detailed reference pages for every pdf format.