PDF
Add clean page numbers to any PDF directly in your browser. Covers placement, font sizing, and keeping the output small enough for portal submissions.
Read guide →Guides
Blog
Long-form, practical guides to compress PDFs, images, and Office files—built for real upload limits, email rules, and quality constraints.
All posts (A–Z)
Guide
Quick reference guide for picking the right file size, format, and compression preset for WhatsApp, email attachments, and government or scholarship portals.
Read guide →IMAGE
The most effective method for shrinking heavy scanned PDFs: convert pages to compressed JPGs and rebuild the document to dramatically cut file size.
Read guide →PDF
Spot text changes, missing pages, and revision differences between two PDF versions — ideal for reviewing contracts, submissions, and tracked edits.
Read guide →Image
Step-by-step workflows for reducing image sizes to pass Google Forms, Moodle, and other LMS upload validators without losing readability.
Read guide →Office
Avoid broken columns, stripped leading zeros, and garbled dates when converting CSV to Excel. Covers encoding, delimiter settings, and formatting traps.
Read guide →PDF
Export PDF pages as small, legible JPGs for online forms with image-only upload fields. Covers DPI targets, quality settings, and common portal constraints.
Read guide →Image
Resize and crop photos to exact passport or ID dimensions in the browser. Covers aspect ratios, background requirements, and typical portal specifications.
Read guide →Guide
Up-to-date attachment size limits for Gmail, Outlook, iCloud, and other major providers — plus practical workflows when your file exceeds the cap.
Read guide →PDF
Pull specific pages from a large PDF and save them as a standalone document — useful for splitting applications, contracts, and multi-section reports.
Read guide →PDF
Copy or download the text content of a PDF as plain TXT — handy for editing, searching, or repurposing content without retyping from scratch.
Read guide →OFFICE
Diagnose and fix the most common JSON syntax errors — missing commas, unquoted keys, trailing commas — then export clean formatted or minified output.
Read guide →Image
Understand the trade-offs between Apple HEIC and standard JPG, and when to convert before sending files to portals, email, or Android recipients.
Read guide →PDF
Browser-based methods for shrinking PDFs directly on your phone — no app download needed. Covers iOS Shortcuts, Android browsers, and size-check steps.
Read guide →PDF
Reduce PDF file size while keeping text and images sharp. Covers safe DPI targets, compression levels, and a step-by-step workflow for real portal limits.
Read guide →PDF
Targeted compression strategies for common upload destinations — email, HR portals, and government forms — with recommended size targets and quality checks.
Read guide →PDF
Settings and workflows for compressing image-heavy scanned PDFs without blurring text or losing detail required for official submissions.
Read guide →PDF
Step-by-step guide to reliably getting any PDF below the 2 MB limit imposed by most scholarship and visa portals, with a verification checklist.
Read guide →Guide
Multi-format strategies for hitting the 1 MB threshold: which formats to use, what to cut first, and how to verify the result before submitting.
Read guide →PDF
Merge multiple PDFs into one document while keeping the final size under control — covers input preparation, merge order, and a post-merge compression pass.
Read guide →Image
A practical guide to resizing and compressing images for web use: choosing the right format, setting export dimensions, and targeting fast load times.
Read guide →Office
Quick checklist for removing the embedded images, fonts, and revision data that silently inflate Office files without breaking layouts or losing content.
Read guide →PDF
Create and place a digital signature on any PDF in the browser — no printing, scanning, or subscription required. Covers legibility and file size impact.
Read guide →Image
Reference dimensions for common publishing contexts: blog hero images, product thumbnails, portfolio galleries, and social media previews — with file size targets.
Read guide →PDF
Combine multiple JPG images into a compact, legible A4 PDF — useful for multi-page applications, receipts, and document sets with strict upload limits.
Read guide →Image
When to use JPG and when to use PNG, based on image content, transparency needs, and target platform — with concrete file size comparisons.
Read guide →PDF
Add selectable, searchable text to scanned PDFs using OCR, reducing reliance on heavy image compression while making the file more accessible and submittable.
Read guide →PDF
How PDF linearization restructures files for faster browser loading, when it makes a practical difference, and how to check if your PDF is linearized.
Read guide →Image
Export PDF pages as PNG or JPG with the right resolution and quality for web display, online forms, and social media — with format comparison tips.
Read guide →PDF
Why upload portals reject large PDFs, what the typical limits are across common platforms, and which steps to take first to bring files within range.
Read guide →Image
How PNG transparency affects file size, when transparency is genuinely necessary, and when switching to JPG delivers significant savings without visual loss.
Read guide →Guide
Verified file size limits for major email services, Spanish and Italian university portals, and scholarship systems — with practical compression targets for each.
Read guide →PDF
How to permanently remove sensitive text and images from a PDF so the hidden content cannot be copied, searched, or recovered after the file is shared.
Read guide →Office
Strip the main sources of hidden bloat from PowerPoint files — embedded videos, uncompressed images, unused fonts — and export a lean, submission-ready copy.
Read guide →IMAGE
Step-by-step privacy checklist for stripping GPS coordinates, device details, and timestamps from images before sharing them online or submitting to portals.
Read guide →Privacy
How to identify and remove revision history, author details, comments, and embedded thumbnails that inflate document file sizes and expose private data.
Read guide →Privacy
Clean personal and document metadata from PDFs and Office files before submission — covering author name, edit history, comments, and linked file paths.
Read guide →PDF
Rearrange, rotate, or delete individual PDF pages in the browser — useful for fixing scan order, removing blank pages, and preparing clean submissions.
Read guide →PDF
How to compress PDFs specifically for scholarship application portals: common size limits, recommended DPI targets, and a pre-submission quality checklist.
Read guide →Guide
A fast, format-agnostic checklist to run before sending any large file — covers size, format, naming, content checks, and common portal-specific gotchas.
Read guide →PDF
How to divide a large PDF into smaller parts that individually pass strict upload size limits, while keeping pages in the correct order and format.
Read guide →Image
Comprehensive reference for image compression across all major formats, platforms, and use cases — from blog images to social headers and email attachments.
Read guide →Guide
A complete overview of every compression tool and workflow on this site — PDF, image, and Office — with links to the right guide for each use case.
Read guide →PDF
Add visible watermarks such as DRAFT or CONFIDENTIAL to PDF pages in the browser, with advice on placement, opacity, and keeping file size under control.
Read guide →Image
How to overlay a visible watermark on images without degrading quality or inflating file size — covers text watermarks, logo overlays, and opacity settings.
Image
Common reasons image files are larger than expected — wrong format, uncropped dimensions, embedded metadata — and the fastest corrective steps for each.
Read guide →Office
How to diagnose and shrink Word document file size: compress embedded images, remove tracked changes, strip embedded fonts, and export a clean PDF copy.
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