Guides
FreeProTool Guides
Short, specific write-ups on the problems behind the tools: why an SVG has empty space around it, what a Word document stores about you, and why a black box over PDF text is not redaction. Each one ends at the tool that does the job.
Documents & privacy
What hides inside PDF and Office files, and how to deal with it before sharing.
How to Remove Metadata from a Word Document
Find and strip the author names, edit time, company fields, and comments that a .docx carries after Save As, and understand what Word's own cleanup misses.
What Metadata Is Hidden in a PDF?
PDFs store two parallel sets of metadata plus annotations, form values, and attachments. Here is what is in there, and why a black box is not redaction.
How to Check a Document Before Sharing It
A short pre-send checklist for PDF, Word, Excel, and PowerPoint files: what to look at, in what order, and which checks people usually skip.
How to Merge PDFs Without Uploading Them
Combine PDFs entirely in your browser, with no upload, no file size cap, and no queue — plus the cases where a local merge behaves differently from a server one.
SVG
Recoloring, cropping, and troubleshooting SVG artwork.
How to Make a Black SVG White
Turn black SVG artwork white by editing its fill and stroke values, with examples for inline SVG, files, and mixed-color artwork.
How to Invert an SVG for Dark Mode
Prepare an SVG for a dark background by choosing between targeted recoloring, full inversion, and CSS, without losing transparency.
CSS filter invert() vs Editing SVG Colors
Compare CSS filter invert() with permanent SVG color edits, including output, reuse, transparency, and multicolor behavior.
How to Invert SVG Fill and Stroke Colors
Invert SVG fill and stroke colors separately, understand inherited paint, and handle gradients and inline styles accurately.
How to Remove Whitespace from an SVG
Remove empty SVG margins by tightening the viewBox around rendered content while preserving real white shapes and vector elements.
How to Fix an Oversized SVG ViewBox
Diagnose and correct an oversized SVG viewBox using visible bounds, padding, negative coordinates, and intrinsic dimensions.
Why Does My SVG Have Extra Space?
Find the real cause of extra SVG space, from oversized viewBoxes and invisible elements to strokes, filters, transforms, and CSS layout.
How to Crop an SVG Without Losing Vector Quality
Crop an SVG by changing its viewBox instead of rasterizing it, while accounting for strokes, effects, embedded images, and export size.