Rhad ac am ddim Cywasgydd PDF
Cywasgu ffeiliau PDF i leihau eu maint. Dim colli ansawdd, dim terfyn maint ffeil.
Gollwng ffeiliau yma, neu cliciwch i bori
PDF dim cyfyngiad maint ffeil
Nid yw eich ffeiliau byth yn gadael eich dyfais. Mae'r holl brosesu yn digwydd yn lleol yn eich porwr.
π‘ Scanned or image-heavy PDFs shrink the most with the image options. Text-only PDFs are usually already small β if nothing helps, weβll tell you the file is already optimized rather than hand you a bigger one.
Optimize for your platform
Sut Mae'n Gweithio
Most "free PDF compressor" sites silently upload your PDF to their servers. Here, compression happens entirely in your browser using pdf-lib β a popular JavaScript library that reads and rewrites PDF files locally.
- 1You drop a PDFThe file is read into your browser's memory as a byte array. Nothing leaves your device.
- 2pdf-lib parses the PDF structurePDFs are essentially containers of fonts, images, and instructions. pdf-lib reads the structure and identifies which embedded images can be re-encoded at lower quality to reduce size.
- 3Images are re-encoded at your chosen qualityYou choose the quality level. Embedded JPEG images are re-encoded with that quality setting. The lower the quality, the smaller the output PDF β but text and vector content remain unchanged.
- 4A new PDF is written and offered for downloadpdf-lib reassembles the PDF with the compressed images and writes the result to a new in-memory file. Click Download to save it locally.
Safe for contracts, tax returns, medical records, anything sensitive. Your PDF and its contents never reach our server β there is no server in this workflow.
Pam defnyddio ein un ni?
Offer Cysylltiedig
Cyfuniad PDF
Cyfuno ffeiliau PDF lluosog yn un. Llusgwch i aildrefnu tudalennau.
Delwedd i PDF
Trosi delweddau i PDF. Ail-archebu tudalennau, gosod maint ac ymylon.
PDF Redactor
Black out sensitive text in a PDF for good. Pages are flattened to images so the hidden content is permanently destroyed β not just covered. Runs entirely in your browser.
