Blog & Guides
Practical guides and tips for working with PDFs
How to Merge PDF Files Online for Free in 2026
Combine multiple PDFs into one file in seconds. Step-by-step guide with no installation, no watermark, no signup needed.
How to Compress PDF Without Losing Quality
Reduce PDF file size by up to 90% while keeping documents readable. Compare compression levels and learn what's safe to do.
PDF to Word Conversion: The Complete Guide (2026)
Turn any PDF into an editable Word document. Learn what gets preserved, what to expect with scans, and how to get perfect results.
OCR Scanned PDFs: How to Make Them Searchable
Turn scanned PDFs into searchable, editable text in 50+ languages with 95–99% accuracy. Free online OCR — no software needed.
PDF Password Protection: Best Practices in 2026
Lock PDFs with bank-grade AES-256 encryption. Learn what password length to choose, how to share securely, and what to avoid.
Electronic Signatures for PDFs Explained
Sign PDFs without printing. Learn the difference between drawn signatures, scanned signatures, and digital certificates — and what's legally valid.
Convert iPhone HEIC Photos to JPG (Easy Guide)
iPhone saves photos as HEIC by default. Learn why, when to convert to JPG, and how to do it free without losing quality.
Image Optimization for Web: Complete Guide
Make your website fast with properly sized, compressed, modern images. Learn dimensions, formats, and tools that work in 2026.
AI PDF Summarization: How It Works (and When to Trust It)
Modern AI can summarize a 200-page report in 30 seconds. Learn how language models do it, when they're accurate, and where they fail.
Best PDF Editors Compared in 2026
Adobe Acrobat, Foxit, online editors — what's the best for editing PDFs in 2026? Honest comparison with prices, features, and limits.
How to Merge PDFs Without Losing Quality
Combine multiple PDFs into one in seconds. Drag, drop, reorder, download. Files are processed in memory and deleted right after.
Split a PDF Into Pages — The Fast Way
Split a PDF by page range or split every page into a separate file. Preview pages, pick the ones you want, download as ZIP or single PDFs.
Reorder PDF Pages by Drag and Drop
Move PDF pages around visually. Drag thumbnails to rearrange, delete pages you don't need, duplicate any page. No software install.
Compress a PDF Without Wrecking the Quality
Shrink PDFs for email or web. Pick a quality preset, see the size before and after, download. Most files drop 60–80% with no visible difference.
Compress JPG and PNG Images Online
Compress JPG, PNG, and WEBP images without changing dimensions. Pick a quality level, see the before/after, batch up to 20 files at once.
Rotate PDF Pages — One or All
Fix sideways pages instantly. Rotate the whole PDF or individual pages. Keep the original quality and download in seconds.
Password Protect a PDF
Add a password to your PDF using 128-bit AES. Block printing, copying, or editing. Recipients enter the password to open the file.
Unlock a PDF When You Already Know the Password
Remove the password from a PDF you have access to. Tired of typing it every time? Strip it once and keep the unencrypted version.
Add a Watermark to a PDF
Stamp 'CONFIDENTIAL', 'DRAFT', or your logo across every page. Adjust opacity, angle, position. Preview before download.
Watermark Photos in Bulk
Add your logo or signature to multiple photos at once. Position it in any corner, set opacity, batch-export.
Annotate a PDF — Highlight, Comment, Draw
Mark up a PDF in your browser. Highlight text, leave comments, draw shapes. Annotations are embedded so anyone can see them.
Sign a PDF Without Printing It
Sign contracts and forms in your browser. Draw with mouse or touchscreen, upload an image, or type a name in cursive font.
OCR a Scanned PDF — Make It Searchable
Turn scanned PDFs into searchable, copyable text. Recognizes English, Turkish, and dozens more. Output as searchable PDF or plain text.
Summarize a PDF with AI
Drop a long PDF, get a short summary. Useful for research papers, meeting transcripts, contracts. Pick short, medium, or detailed.
Convert Word to PDF Without Formatting Issues
Convert .doc and .docx files to PDF with the original formatting intact. Fonts, images, tables, headers — all preserved.
Convert PDF to Word and Actually Edit It
Turn a PDF into an editable Word file. Text, tables, images, layout — all converted. Free, no watermark, no email required.
Convert PDF to Anything (and Anything to PDF)
One tool, twenty-plus formats. PDF ↔ Word, Excel, PowerPoint, JPG, PNG, HTML, TXT. Auto-detects what you uploaded.
Combine Photos Into a Single PDF
Turn photos into a clean PDF. Reorder them by drag, choose page size (A4, Letter), set margins, download.
Extract Text from a Photo
Photographed a page of a book? Got a screenshot of code? Pull the text out instantly with OCR. Supports dozens of languages.
Convert Between Image Formats
Convert JPG to PNG, WEBP to JPG, HEIC from your iPhone to anything else. Browser-based, no upload to a server.
Resize Images Without Stretching
Resize JPG, PNG, WEBP by pixel value or percentage. Lock aspect ratio so nothing stretches. Batch resize up to 20 images.
Crop Images Quickly Online
Crop a photo to any aspect ratio. Drag the corners, pick a preset (1:1, 16:9, 4:3), apply. Batch crop multiple images.
Rotate or Flip Images Free
Rotate or mirror photos in one click. 90° steps or any free angle. Fixes sideways phone shots in seconds.
Edit a PDF in Your Browser
Add text, insert images, delete pages, reorder. Most PDF editors charge for these basics. This one doesn't.
Fill Out a PDF Form Online
Detect fillable form fields automatically. Type text, check boxes, sign, save. Works with most government and HR forms.
Grade Student PDFs Quickly
Built for teachers. Open a student's PDF, mark the pages, write feedback, export. Send graded PDFs back without printing.
Compare Two PDFs Side by Side
Drop two PDFs, see what's different. Added, removed, and changed text highlighted. Works with contracts, agreements, drafts.
Copersi Privacy Policy
Privacy policy for Copersi, an offline image compressor app that processes images locally on your device
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Convert your PDF to Word, Excel, JPG, PNG, PowerPoint, HTML or TXT. Also Word to PDF, image to PDF, PPT to PDF. 22 different conversions. Free.
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Add password protection to your important PDFs. Encrypt, lock, restrict printing or copying. Also remove or unlock forgotten passwords. Free & secure.
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Fix those crooked pages from your scanner. Rotate single pages or entire document 90, 180, 270 degrees. Free, no software needed.
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Compress PDFs that won't fit in an email. Shrink file size up to 70% without losing much quality. Free, one click. No watermark.
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Split a big PDF file into smaller ones. Select specific pages, create new PDFs. Free, fast and secure.
PDF Merge — Combine Your Files into One PDF - Free PDF Merge - PDF7
Merge multiple PDF files into a single document in seconds. Free, no watermark, and your files are not stored on our servers.