The Toolerax Blog — Page 14
Practical guides and tips to get the most out of our tools — and the concepts behind them.
What Is a URL Slug?
What a URL slug is, why it matters for SEO and click-through, how to write one well, and why you must never change one casually.
Read articleWhat Is an XML Sitemap?
XML sitemaps explained: what they do, the lastmod/changefreq/priority fields, who actually benefits, size limits, and how to submit yours to search engines.
Read articleMD5 vs SHA-256: Which Should You Use?
How hash functions work, why MD5 is broken, what a collision attack really means, when MD5 is still fine, and why neither should store passwords.
Read articleHow to Rearrange PDF Pages
Fix out-of-order PDFs — misplaced covers, reverse-fed scans, swapped pages — by reordering the existing file losslessly in your browser.
Read articleTitle Tag & Meta Description Length
Why title and meta description length is measured in pixels, the real desktop and mobile limits, and why Google rewrites your snippets.
Read articleHow to Add Page Numbers to a PDF
Choosing between 1, Page 1 and 1/12 formats, where numbers belong on the page, handling cover pages and continued documents, and numbering without uploads.
Read articleOpen Graph Tags Explained
How Open Graph and Twitter Card meta tags control your social share preview, the tags you actually need, the ideal image size, and why previews cache.
Read articleHow to Watermark a PDF
When and how to stamp text across PDF pages: choosing opacity and angle, what watermarks can and can't protect, and doing it without uploading the file.
Read articleIs Keyword Density a Ranking Factor?
The honest answer on keyword density: why it is not a target to hit, how stuffing backfires, and what search engines reward instead.
Read articleHow to Add Text to a Photo
The readability rules for text on images — outlines, contrast, placement, size — plus when text belongs in the image file and when it absolutely doesn't.
Read articleHow to Rotate and Flip an Image
The EXIF orientation bug that makes phone photos display sideways, the difference between rotating and mirroring, and how to fix both losslessly.
Read articleHow to Pick Colors From an Image
Extract exact HEX and RGB values from any photo or logo, avoid the anti-aliasing and compression traps that skew picks, and build a palette that works.
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