Pixuna Guides
Practical guides for working with media
Practical how-tos and clear explanations of how media tools work, including the differences between browser processing and uploads.
How to Compress an Image Without Losing Quality
Learn what image compression changes, how dimensions and formats affect file size, and how to use Pixuna’s browser-based image compressor.
2 min readWebP vs. JPEG vs. PNG: Which Image Format Should You Use?
Compare JPEG, PNG, and WebP for photos, graphics, transparency, compatibility, and file size, then choose an export that fits your use.
2 min readHow to Resize an Image to Exact Pixel Dimensions
Understand image width, height, aspect ratio, and distortion, then resize an image with Pixuna’s browser-based resizer.
2 min readHow to Optimize Images for Faster Websites
A practical workflow for choosing image formats, resizing oversized files, compressing images, and checking the result before publishing.
2 min readHow to Crop and Rotate Images Without Installing Software
Correct image orientation and use aspect-ratio crops for common layouts with Pixuna’s browser-based Crop & Rotate tool.
2 min readHow to Convert Images Between Different File Formats
Choose an image output format based on transparency, compatibility, and visual needs, then convert it with Pixuna in your browser.
2 min readHow to Reduce an Image to 100 KB or 200 KB
Learn why an exact image file size cannot be guaranteed, and use dimensions, format, and quality settings to work toward a 100 KB or 200 KB target.
3 min readAre Online Image Compressors Safe to Use?
Learn how browser-based and upload-based image compressors differ, what to check in a privacy policy, and how Pixuna processes images.
2 min readDo Online Image Converters Upload Your Photos?
Find out how to tell whether an image converter works locally or uploads photos, and see how Pixuna’s converter is implemented.
2 min readHow to Compress Images Without Uploading Them to a Server
Use browser-based image compression, understand its device and format limitations, and review Pixuna’s actual image-compression workflow.
2 min readHow to Convert Images Privately in Your Browser
Convert images in your browser with Pixuna, while checking format support, transparency, and the limits of local processing.
2 min readHow to Choose a Private Online Media Tool
Use a practical checklist to evaluate local processing, uploads, retention, file access, encryption, and privacy disclosures.
2 min readHow to Merge PDF Files Into One Document
Combine several PDFs into a single file in your browser, set the page order, and know what may not carry over.
2 min readHow to Split a PDF or Extract Specific Pages
Separate a PDF into single pages or ranges, or keep only the pages you need, using page ranges like 1-3, 5, 8-.
2 min readHow to Reorder, Rotate, and Delete PDF Pages
Fix scanned or assembled PDFs by moving pages, rotating sideways pages, and removing blank or unwanted ones.
1 min readHow to Reduce PDF File Size (and What Compression Costs)
Understand why PDFs get large, what browser-based compression can and cannot do, and how to choose between re-saving and flattening pages.
2 min readHow to Convert Images to PDF
Turn photos, screenshots, and scans into a single PDF, choose page size and margins, and understand how images are embedded.
2 min readHow to Convert PDF Pages to JPG or PNG
Export PDF pages as images, choose resolution and format, and know the difference between PNG and JPG output.
1 min readHow to Add Page Numbers and Watermarks to a PDF
Stamp page numbers, a diagonal watermark, or a short text note onto PDF pages and understand what this does and does not do.
2 min readHow to Password Protect or Unlock a PDF
Encrypt a PDF with a password in your browser, or remove a password you already know, and understand the limits of both.
1 min readAre Online PDF Tools Safe? How to Check Before You Upload
PDFs often contain sensitive information. Learn how browser-based and upload-based PDF tools differ and how to verify what a site does.
2 min readHow to Count Words and Clean Up Messy Text
Count words, characters, and reading time, then remove extra spaces, blank lines, and broken line breaks from pasted text.
2 min readHow to Compare Two Text Documents and See What Changed
Compare two versions of a text by line, word, or character, and understand what the highlighting means.
2 min readHow to Format and Validate JSON and XML
Pretty-print or minify JSON and XML, find syntax errors, and learn what a browser-based validator can and cannot check.
2 min readHow to Convert Markdown to HTML or PDF
Turn Markdown into HTML with a live preview of the markup, or into a simple PDF, and learn what each output keeps.
2 min readHow to Convert a Word DOCX File to HTML or Plain Text
Extract text or clean HTML from a .docx file in your browser, and understand what is simplified in the conversion.
1 min readHow to Convert Text or HTML to PDF in Your Browser
Create a PDF from plain text or HTML with page size, font, and margin options, and see which limits apply.
2 min readHow to Convert CSV to JSON and JSON to CSV
Convert between CSV and JSON in your browser, with delimiter detection, type handling, and flattening of nested objects.
2 min readHow to Convert Between CSV and Excel (XLSX)
Create an .xlsx workbook from CSV, or export Excel sheets as CSV, with notes on dates, formulas, and file support.
2 min readHow to Merge CSV Files and Remove Duplicate Rows
Combine several CSV files by matching column names, then remove repeated rows using all or selected columns.
2 min readHow to Sort and Filter CSV Data Without a Spreadsheet App
Sort a CSV by text, number, or date, filter rows by condition, and preview the result as a table.
2 min readHow to Convert Date and Number Formats in a CSV File
Change dates between DMY, MDY, and ISO formats and fix decimal and thousands separators, without guessing what ambiguous values mean.
2 min read