Practical guides for your files
Get a better result with a little know-how.
Compression
How to Compress an Image to 100 KB
Prepare a photograph below a 100 KB upload limit while checking its format, pixel dimensions and readable detail.
Read guide →How to Compress an Image to 50 KB
Handle a tight 50 KB limit without losing essential photo detail, signature strokes or required dimensions.
Read guide →How to Make an Image Close to 200 KB
Choose between a nearby file size and a strict 200 KB ceiling, and understand why encoded images rarely land on an exact byte count.
Read guide →Why Exact KB Compression Is Not Always Possible
Learn why quality settings, pixel counts and file overhead produce discrete sizes, and how to handle strict upload limits honestly.
Read guide →How Image Compression Works
Understand lossless and lossy encoding, pixel resizing, unchanged file sizes and the difference between measured savings and a quality setting.
Read guide →Formats
JPG vs PNG vs WebP: Which Format Should You Choose?
Compare photographic detail, transparent backgrounds, crisp text and upload compatibility before converting an image.
Read guide →How to Convert HEIC to JPG in Your Browser
Export a still JPEG from a supported HEIC file, check orientation and understand local decoding and compatibility limits.
Read guide →Photo printing
What Is DPI? Photo Sizes, Pixels and Printing
Calculate print pixels from millimeters and resolution, and avoid confusing a DPI label with real image detail.
Read guide →72 DPI vs 300 DPI: What Actually Changes?
Understand when print resolution changes pixel count, when it only changes a label, and what an online form really needs.
Read guide →How Many Pixels Is a 3 × 4 cm Photo?
Convert a 3 × 4 cm print into pixels at 300 or 600 DPI and distinguish physical photo sizes from digital upload dimensions.
Read guide →How to Make Passport Photos at Home
Prepare and print a passport-sized photo while checking the issuing authority's rules beyond dimensions alone.
Read guide →How to Print Multiple Passport Photos on One Sheet
Arrange correctly sized photo copies on A4 or 4 × 6 paper and avoid printer scaling, clipping and spacing mistakes.
Read guide →Online forms
How to Resize a Photo for Online Forms
Meet format, pixel and byte requirements together while choosing between Crop and Fit and preserving a useful original.
Read guide →How to Prepare a Signature for Online Applications
Crop, resize and compress a signature while protecting fine ink strokes and following the application's actual requirements.
Read guide →Privacy
What Is EXIF Metadata in a Photo?
Understand camera details, dates and GPS fields, and distinguish readable metadata from information visible in the image itself.
Read guide →How to Remove GPS Location Data from an Image
Inspect location fields, create a re-encoded sharing copy and verify readable metadata without confusing removal with complete anonymity.
Read guide →How to Reduce PDF File Size Without Surprises
Use local raster compression for suitable PDFs and understand its effects on searchable text, forms, quality and output size.
Read guide →How to Convert Images to a PDF
Arrange photographs or scans into a local PDF with intentional page size, order, margins and image fitting.
Read guide →How to Merge PDF Files in the Right Order
Combine supported PDFs locally, verify page order and understand which interactive document features are not preserved.
Read guide →JPG vs PDF for Document Uploads
Choose the format a document portal expects and understand page order, text search, image quality and size trade-offs.
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