{"id":275967,"date":"2023-10-24T20:27:21","date_gmt":"2023-10-24T13:27:21","guid":{"rendered":"https:\/\/hoanghamobile.com\/tin-tuc\/?p=275967"},"modified":"2023-10-24T20:27:21","modified_gmt":"2023-10-24T13:27:21","slug":"png-la-gi","status":"publish","type":"post","link":"https:\/\/hoanghamobile.com\/tin-tuc\/png-la-gi\/","title":{"rendered":"File \u0111u\u00f4i PNG l\u00e0 g\u00ec? C\u00e1ch t\u1ea1o v\u00e0 chuy\u1ec3n \u0111u\u00f4i PNG sang JPEG, PDF c\u1ef1c d\u1ec5"},"content":{"rendered":"

Khi truy c\u1eadp m\u1ed9t trang web hay xem qua c\u00e1c \u1ee9ng d\u1ee5ng tr\u00ean \u0111i\u1ec7n tho\u1ea1i, c\u00f3 l\u1ebd b\u1ea1n \u0111\u00e3 g\u1eb7p ph\u1ea3i r\u1ea5t nhi\u1ec1u h\u00ecnh \u1ea3nh v\u1edbi \u0111u\u00f4i “.png”. V\u1eady th\u1ef1c ch\u1ea5t, PNG l\u00e0 g\u00ec<\/strong> v\u00e0 t\u1ea1i sao ch\u00fang ta th\u01b0\u1eddng g\u1eb7p n\u00f3 \u1edf kh\u1eafp m\u1ecdi n\u01a1i tr\u00ean m\u1ea1ng? Trong b\u00e0i vi\u1ebft n\u00e0y, h\u00e3y c\u00f9ng Ho\u00e0ng H\u00e0 Mobile t\u00ecm hi\u1ec3u r\u00f5 h\u01a1n v\u1ec1 \u0111\u1ecbnh d\u1ea1ng file \u1ea3nh ph\u1ed5 bi\u1ebfn n\u00e0y c\u0169ng nh\u01b0 c\u00e1ch t\u1ea1o v\u00e0 chuy\u1ec3n \u0111u\u00f4i PNG hi\u1ec7u qu\u1ea3.<\/p>\n

PNG l\u00e0 g\u00ec? \u0110\u1eb7c \u0111i\u1ec3m k\u1ef9 thu\u1eadt c\u1ee7a \u0111\u1ecbnh d\u1ea1ng PNG<\/h2>\n

PNG, vi\u1ebft t\u1eaft c\u1ee7a “Portable Network Graphics” l\u00e0 m\u1ed9t \u0111\u1ecbnh d\u1ea1ng file \u1ea3nh \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf nh\u1eb1m thay th\u1ebf GIF. PNG mang \u0111\u1ebfn m\u1ed9t lo\u1ea1i n\u00e9n \u1ea3nh kh\u00f4ng m\u1ea5t m\u00e1t, c\u00f3 ngh\u0129a l\u00e0 ch\u1ea5t l\u01b0\u1ee3ng \u1ea3nh s\u1ebd kh\u00f4ng b\u1ecb gi\u1ea3m \u0111i sau m\u1ed7i l\u1ea7n ch\u1ec9nh s\u1eeda v\u00e0 l\u01b0u l\u1ea1i. \u0110\u1eb7c tr\u01b0ng n\u1ed5i b\u1eadt c\u1ee7a PNG l\u00e0 kh\u1ea3 n\u0103ng h\u1ed7 tr\u1ee3 m\u00e0u s\u1eafc trong su\u1ed1t, gi\u00fap \u1ea3nh c\u00f3 n\u1ec1n trong su\u1ed1t m\u00e0 kh\u00f4ng xu\u1ea5t hi\u1ec7n \u0111\u01b0\u1eddng vi\u1ec1n.<\/p>\n

\"png-la-gi\"<\/picture><\/p>\n

\u0110\u1eb7c \u0111i\u1ec3m k\u1ef9 thu\u1eadt c\u1ee7a PNG<\/strong><\/p>\n

H\u1ed7 tr\u1ee3 m\u00e0u s\u1eafc trong su\u1ed1t (alpha channel): Kh\u1ea3 n\u0103ng n\u00e0y cho ph\u00e9p PNG hi\u1ec3n th\u1ecb c\u00e1c ph\u1ea7n c\u1ee7a h\u00ecnh \u1ea3nh m\u00e0 b\u1ea1n mu\u1ed1n gi\u1eef trong su\u1ed1t. \u0110i\u1ec1u n\u00e0y r\u1ea5t h\u1eefu \u00edch khi b\u1ea1n mu\u1ed1n ch\u00e8n \u1ea3nh v\u00e0o m\u1ed9t n\u1ec1n m\u00e0u ho\u1eb7c m\u1ed9t h\u00ecnh \u1ea3nh kh\u00e1c m\u00e0 kh\u00f4ng mu\u1ed1n c\u00f3 \u0111\u01b0\u1eddng vi\u1ec1n xung quanh n\u00f3.<\/p>\n

N\u00e9n kh\u00f4ng m\u1ea5t m\u00e1t (lossless compression): PNG gi\u1eef nguy\u00ean ch\u1ea5t l\u01b0\u1ee3ng \u1ea3nh sau m\u1ed7i l\u1ea7n ch\u1ec9nh s\u1eeda v\u00e0 l\u01b0u. \u0110i\u1ec1u n\u00e0y \u0111\u1ea3m b\u1ea3o r\u1eb1ng m\u1ed7i chi ti\u1ebft, m\u00e0u s\u1eafc v\u00e0 s\u1ef1 r\u00f5 n\u00e9t c\u1ee7a \u1ea3nh ban \u0111\u1ea7u \u0111\u1ec1u \u0111\u01b0\u1ee3c b\u1ea3o t\u1ed3n.<\/p>\n

So s\u00e1nh PNG v\u1edbi c\u00e1c \u0111\u1ecbnh d\u1ea1ng kh\u00e1c nh\u01b0 JPEG, GIF<\/strong><\/p>\n

Sau khi hi\u1ec3u r\u00f5 h\u01a1n v\u1ec1 PNG l\u00e0 g\u00ec<\/strong> th\u00ec h\u00e3y xem n\u00f3 c\u00f3 g\u00ec kh\u00e1c bi\u1ec7t so v\u1edbi c\u00e1c \u0111\u1ecbnh \u0111\u1ea1ng \u1ea3nh kh\u00e1c kh\u00f4ng nh\u00e9.<\/p>\n

JPEG l\u00e0 \u0111\u1ecbnh d\u1ea1ng ph\u1ed5 bi\u1ebfn cho h\u00ecnh \u1ea3nh v\u1edbi n\u00e9n c\u00f3 m\u1ea5t m\u00e1t, th\u00edch h\u1ee3p cho \u1ea3nh c\u00f3 nhi\u1ec1u m\u00e0u s\u1eafc v\u00e0 chi ti\u1ebft. Tuy nhi\u00ean, n\u00f3 kh\u00f4ng h\u1ed7 tr\u1ee3 trong su\u1ed1t v\u00e0 c\u00f3 th\u1ec3 m\u1ea5t ch\u1ea5t l\u01b0\u1ee3ng khi ch\u1ec9nh s\u1eeda nhi\u1ec1u l\u1ea7n.<\/p>\n

GIF c\u0169ng h\u1ed7 tr\u1ee3 trong su\u1ed1t v\u00e0 c\u00f3 kh\u1ea3 n\u0103ng hi\u1ec3n th\u1ecb animation. Nh\u01b0ng GIF ch\u1ec9 h\u1ed7 tr\u1ee3 256 m\u00e0u, l\u00e0m gi\u1ea3m ch\u1ea5t l\u01b0\u1ee3ng \u1ea3nh.<\/p>\n

\"png-la-gi-1\"<\/picture><\/p>\n

\u01afu v\u00e0 nh\u01b0\u1ee3c \u0111i\u1ec3m c\u1ee7a PNG l\u00e0 g\u00ec?<\/h2>\n

Khi quy\u1ebft \u0111\u1ecbnh s\u1eed d\u1ee5ng m\u1ed9t \u0111\u1ecbnh d\u1ea1ng h\u00ecnh \u1ea3nh c\u1ee5 th\u1ec3, vi\u1ec7c n\u1eafm b\u1eaft r\u00f5 r\u00e0ng \u01b0u v\u00e0 nh\u01b0\u1ee3c \u0111i\u1ec3m c\u1ee7a n\u00f3 s\u1ebd gi\u00fap b\u1ea1n l\u1ef1a ch\u1ecdn m\u1ed9t c\u00e1ch th\u00f4ng minh. PNG l\u00e0 m\u1ed9t l\u1ef1a ch\u1ecdn ph\u1ed5 bi\u1ebfn, nh\u01b0ng li\u1ec7u n\u00f3 c\u00f3 ph\u00f9 h\u1ee3p cho m\u1ecdi t\u00ecnh hu\u1ed1ng?<\/p>\n

\u01afu \u0111i\u1ec3m<\/h3>\n

Ch\u1ea5t l\u01b0\u1ee3ng h\u00ecnh \u1ea3nh cao, kh\u00f4ng m\u1ea5t m\u00e1t<\/strong>: PNG cho ph\u00e9p b\u1ea1n l\u01b0u tr\u1eef h\u00ecnh \u1ea3nh v\u1edbi ch\u1ea5t l\u01b0\u1ee3ng g\u1ed1c, d\u00f9 b\u1ea1n ch\u1ec9nh s\u1eeda bao nhi\u00eau l\u1ea7n \u0111i ch\u0103ng n\u1eefa. \u0110i\u1ec1u n\u00e0y \u0111\u1ea3m b\u1ea3o r\u1eb1ng h\u00ecnh \u1ea3nh lu\u00f4n gi\u1eef \u0111\u01b0\u1ee3c chi ti\u1ebft, s\u1eafc n\u00e9t v\u00e0 m\u00e0u s\u1eafc trung th\u1ef1c.<\/p>\n

\"png-la-gi-2\"<\/picture><\/p>\n

H\u1ed7 tr\u1ee3 n\u1ec1n trong su\u1ed1t<\/strong>: Kh\u1ea3 n\u0103ng n\u00e0y c\u1ee7a PNG r\u1ea5t thu\u1eadn ti\u1ec7n khi b\u1ea1n mu\u1ed1n t\u1ea1o ra c\u00e1c h\u00ecnh \u1ea3nh c\u00f3 n\u1ec1n trong su\u1ed1t, ho\u1eb7c k\u1ebft h\u1ee3p ch\u00fang v\u1edbi n\u1ec1n kh\u00e1c m\u00e0 kh\u00f4ng g\u00e2y ra hi\u1ec7u \u1ee9ng \u0111\u01b0\u1eddng vi\u1ec1n kh\u00f4ng mong mu\u1ed1n.<\/p>\n

T\u01b0\u01a1ng th\u00edch r\u1ed9ng r\u00e3i v\u1edbi nhi\u1ec1u \u1ee9ng d\u1ee5ng v\u00e0 tr\u00ecnh duy\u1ec7t: \u0110i\u1ec1u n\u00e0y gi\u00fap cho vi\u1ec7c chia s\u1ebb v\u00e0 hi\u1ec3n th\u1ecb h\u00ecnh \u1ea3nh tr\u1edf n\u00ean d\u1ec5 d\u00e0ng, kh\u00f4ng g\u1eb7p ph\u1ea3i l\u1ed7i hay s\u1ef1 c\u1ed1 khi m\u1edf tr\u00ean c\u00e1c thi\u1ebft b\u1ecb kh\u00e1c nhau.<\/p>\n

Nh\u01b0\u1ee3c \u0111i\u1ec3m<\/h3>\n

K\u00edch th\u01b0\u1edbc file l\u1edbn h\u01a1n so v\u1edbi JPEG<\/strong>: Do PNG gi\u1eef nguy\u00ean ch\u1ea5t l\u01b0\u1ee3ng h\u00ecnh \u1ea3nh, k\u00edch th\u01b0\u1edbc c\u1ee7a n\u00f3 th\u01b0\u1eddng l\u1edbn h\u01a1n so v\u1edbi \u0111\u1ecbnh d\u1ea1ng JPEG, \u0111\u1eb7c bi\u1ec7t l\u00e0 v\u1edbi nh\u1eefng h\u00ecnh \u1ea3nh c\u00f3 nhi\u1ec1u chi ti\u1ebft v\u00e0 m\u00e0u s\u1eafc. \u0110i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn t\u1ed1c \u0111\u1ed9 t\u1ea3i trang web n\u1ebfu s\u1eed d\u1ee5ng nhi\u1ec1u h\u00ecnh \u1ea3nh PNG.<\/p>\n

\"png-la-gi-3\"<\/picture><\/p>\n

Kh\u00f4ng h\u1ed7 tr\u1ee3 animation nh\u01b0 GIF<\/strong>: Trong khi GIF cho ph\u00e9p b\u1ea1n t\u1ea1o c\u00e1c h\u00ecnh \u1ea3nh \u0111\u1ed9ng, PNG ch\u1ec9 h\u1ed7 tr\u1ee3 h\u00ecnh \u1ea3nh t\u0129nh. \u0110i\u1ec1u n\u00e0y gi\u1edbi h\u1ea1n kh\u1ea3 n\u0103ng s\u00e1ng t\u1ea1o khi b\u1ea1n mu\u1ed1n th\u00eam hi\u1ec7u \u1ee9ng \u0111\u1ed9ng v\u00e0o h\u00ecnh \u1ea3nh c\u1ee7a m\u00ecnh.<\/p>\n

T\u00f3m l\u1ea1i, m\u1ed7i \u0111\u1ecbnh d\u1ea1ng h\u00ecnh \u1ea3nh \u0111\u1ec1u c\u00f3 \u0111i\u1ec3m m\u1ea1nh v\u00e0 \u0111i\u1ec3m y\u1ebfu ri\u00eang. PNG l\u00e0 m\u1ed9t s\u1ef1 l\u1ef1a ch\u1ecdn tuy\u1ec7t v\u1eddi cho nh\u1eefng ai c\u1ea7n ch\u1ea5t l\u01b0\u1ee3ng h\u00ecnh \u1ea3nh cao v\u00e0 n\u1ec1n trong su\u1ed1t, nh\u01b0ng c\u1ea7n c\u00e2n nh\u1eafc khi mu\u1ed1n t\u1ed1i \u01b0u t\u1ed1c \u0111\u1ed9 trang web ho\u1eb7c t\u1ea1o animation.<\/p>\n

C\u00e1ch t\u1ea1o \u1ea3nh PNG \u0111\u01a1n gi\u1ea3n, d\u1ec5 th\u1ef1c hi\u1ec7n<\/h2>\n

Vi\u1ec7c t\u1ea1o ra m\u1ed9t file PNG kh\u00f4ng qu\u00e1 ph\u1ee9c t\u1ea1p, v\u00e0 b\u1ea1n c\u00f3 th\u1ec3 th\u1ef1c hi\u1ec7n \u0111i\u1ec1u n\u00e0y v\u1edbi nhi\u1ec1u ph\u1ea7n m\u1ec1m ch\u1ec9nh s\u1eeda \u1ea3nh kh\u00e1c nhau tr\u00ean th\u1ecb tr\u01b0\u1eddng sau khi hi\u1ec3u r\u00f5 v\u1ec1 PNG l\u00e0 g\u00ec<\/strong>. \u0110\u00e2y l\u00e0 h\u01b0\u1edbng d\u1eabn c\u01a1 b\u1ea3n v\u1ec1 c\u00e1ch t\u1ea1o file PNG.<\/p>\n

Chuy\u1ec3n \u0111u\u00f4i \u1ea3nh sang PNG<\/h3>\n

B\u1ea1n \u0111\u00e3 t\u1eebng mu\u1ed1n chuy\u1ec3n m\u1ed9t b\u1ee9c \u1ea3nh s\u1eb5n c\u00f3 c\u1ee7a m\u00ecnh sang \u0111\u1ecbnh d\u1ea1ng PNG? Tr\u01b0\u1edbc h\u1ebft, h\u00e3y \u0111\u1ea3m b\u1ea3o r\u1eb1ng b\u1ee9c \u1ea3nh b\u1ea1n mu\u1ed1n chuy\u1ec3n \u0111\u1ed5i c\u00f3 \u0111\u1ee7 ch\u1ea5t l\u01b0\u1ee3ng. Khi \u0111\u00e3 ch\u1eafc ch\u1eafn, b\u1ea1n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng c\u00e1c c\u00f4ng c\u1ee5 tr\u1ef1c tuy\u1ebfn ho\u1eb7c ph\u1ea7n m\u1ec1m chuy\u00ean d\u1ee5ng \u0111\u1ec3 th\u1ef1c hi\u1ec7n vi\u1ec7c chuy\u1ec3n \u0111\u1ed5i. \u0110i\u1ec1u n\u00e0y gi\u00fap b\u1ea1n gi\u1eef nguy\u00ean ch\u1ea5t l\u01b0\u1ee3ng c\u1ee7a h\u00ecnh \u1ea3nh, m\u1eb7c d\u00f9 khi ph\u00f3ng to, h\u00ecnh \u1ea3nh c\u00f3 th\u1ec3 xu\u1ea5t hi\u1ec7n m\u1ed9t s\u1ed1 kh\u00e1c bi\u1ec7t nh\u01b0 m\u1edd ho\u1eb7c b\u1ec3.<\/p>\n

\"png-la-gi-4\"<\/picture><\/p>\n

Xu\u1ea5t h\u00ecnh \u1ea3nh d\u01b0\u1edbi \u0111\u1ecbnh d\u1ea1ng PNG<\/h3>\n

N\u1ebfu b\u1ea1n l\u00e0 m\u1ed9t nh\u00e0 thi\u1ebft k\u1ebf ho\u1eb7c ch\u1ec9 \u0111\u01a1n gi\u1ea3n l\u00e0 m\u1ed9t ng\u01b0\u1eddi y\u00eau th\u00edch ch\u1ec9nh s\u1eeda \u1ea3nh, vi\u1ec7c xu\u1ea5t h\u00ecnh \u1ea3nh d\u01b0\u1edbi \u0111\u1ecbnh d\u1ea1ng PNG s\u1ebd l\u00e0 m\u1ed9t l\u1ef1a ch\u1ecdn tuy\u1ec7t v\u1eddi. S\u1eed d\u1ee5ng c\u00e1c ph\u1ea7n m\u1ec1m chuy\u00ean d\u1ee5ng nh\u01b0 Photoshop ho\u1eb7c Illustrator, b\u1ea1n c\u00f3 th\u1ec3 t\u00f9y ch\u1ec9nh v\u00e0 ch\u1ec9nh s\u1eeda h\u00ecnh \u1ea3nh c\u1ee7a m\u00ecnh theo \u00fd mu\u1ed1n. Sau khi ho\u00e0n thi\u1ec7n, ch\u1ec9 c\u1ea7n l\u1ef1a ch\u1ecdn xu\u1ea5t file d\u01b0\u1edbi d\u1ea1ng PNG, v\u00e0 b\u1ea1n s\u1ebd c\u00f3 m\u1ed9t b\u1ee9c \u1ea3nh ch\u1ea5t l\u01b0\u1ee3ng cao, s\u1eafc n\u00e9t v\u00e0 \u0111\u1eb7c bi\u1ec7t l\u00e0 c\u00f3 kh\u1ea3 n\u0103ng h\u1ed7 tr\u1ee3 n\u1ec1n trong su\u1ed1t.<\/p>\n

\"png-la-gi-5\"<\/picture><\/p>\n

L\u01b0u \u00fd khi xu\u1ea5t file \u1edf \u0111\u1ecbnh d\u1ea1ng PNG l\u00e0 g\u00ec?<\/h3>\n

Khi b\u1ea1n xu\u1ea5t h\u00ecnh \u1ea3nh d\u01b0\u1edbi d\u1ea1ng PNG, m\u1ed9t s\u1ed1 t\u00f9y ch\u1ecdn c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c cung c\u1ea5p t\u00f9y thu\u1ed9c v\u00e0o ph\u1ea7n m\u1ec1m b\u1ea1n s\u1eed d\u1ee5ng:<\/p>\n

M\u1ee9c \u0111\u1ed9 n\u00e9n<\/strong>: PNG s\u1eed d\u1ee5ng n\u00e9n kh\u00f4ng m\u1ea5t m\u00e1t, nh\u01b0ng b\u1ea1n v\u1eabn c\u00f3 th\u1ec3 ch\u1ecdn m\u1ee9c \u0111\u1ed9 n\u00e9n \u0111\u1ec3 gi\u1ea3m k\u00edch th\u01b0\u1edbc file. T\u00f9y ch\u1ecdn n\u00e0y c\u00f3 th\u1ec3 gi\u00fap n\u1ebfu b\u1ea1n mu\u1ed1n t\u1ed1i \u01b0u h\u00f3a h\u00ecnh \u1ea3nh cho web, nh\u01b0ng h\u00e3y nh\u1edb r\u1eb1ng vi\u1ec7c n\u00e9n qu\u00e1 m\u1ee9c c\u00f3 th\u1ec3 l\u00e0m gi\u1ea3m ch\u1ea5t l\u01b0\u1ee3ng h\u00ecnh \u1ea3nh.<\/p>\n

\"png-la-gi-luu-y\"<\/picture><\/p>\n

Ch\u1ea5t l\u01b0\u1ee3ng<\/strong>: \u0110\u1ed1i v\u1edbi m\u1ed9t s\u1ed1 ph\u1ea7n m\u1ec1m, b\u1ea1n c\u00f3 th\u1ec3 ch\u1ecdn ch\u1ea5t l\u01b0\u1ee3ng xu\u1ea5t. M\u1eb7c d\u00f9 PNG l\u00e0 \u0111\u1ecbnh d\u1ea1ng kh\u00f4ng m\u1ea5t m\u00e1t, vi\u1ec7c \u0111i\u1ec1u ch\u1ec9nh ch\u1ea5t l\u01b0\u1ee3ng c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn k\u00edch th\u01b0\u1edbc v\u00e0 chi ti\u1ebft c\u1ee7a file.<\/p>\n

Khi l\u1ef1a ch\u1ecdn t\u00f9y ch\u1ecdn xu\u1ea5t, h\u00e3y lu\u00f4n xem tr\u01b0\u1edbc h\u00ecnh \u1ea3nh c\u1ee7a b\u1ea1n \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o r\u1eb1ng ch\u1ea5t l\u01b0\u1ee3ng v\u00e0 k\u00edch th\u01b0\u1edbc \u0111\u1ec1u ph\u00f9 h\u1ee3p v\u1edbi m\u1ee5c ti\u00eau c\u1ee7a b\u1ea1n.<\/p>\n

H\u01b0\u1edbng d\u1eabn chi ti\u1ebft c\u00e1ch chuy\u1ec3n \u0111u\u1ed5i PNG sang c\u00e1c \u0111\u1ecbnh d\u1ea1ng ph\u1ed5 bi\u1ebfn<\/h2>\n

N\u1ebfu \u0111\u00e3 n\u1eafm b\u1eaft th\u00f4ng tin v\u1ec1 file PNG l\u00e0 g\u00ec<\/strong> th\u00ec b\u1ea1n c\u00f3 th\u1ec3 th\u1ef1c hi\u1ec7n c\u00e1c b\u01b0\u1edbc chuy\u1ec3n \u0111\u1ed5i \u0111\u01a1n gi\u1ea3n. V\u00ed d\u1ee5 nh\u01b0 b\u1ea1n c\u00f3 b\u1ee9c \u1ea3nh \u0111\u1ecbnh d\u1ea1ng PNG v\u00e0 mu\u1ed1n chuy\u1ec3n n\u00f3 sang \u0111\u1ecbnh d\u1ea1ng kh\u00e1c? D\u01b0\u1edbi \u0111\u00e2y l\u00e0 c\u00e1ch \u0111\u01a1n gi\u1ea3n \u0111\u1ec3 b\u1ea1n th\u1ef1c hi\u1ec7n:<\/p>\n

Chuy\u1ec3n PNG sang JPEG<\/h3>\n

Chuy\u1ec3n PNG sang JPEG tr\u1ef1c tuy\u1ebfn<\/strong><\/p>\n

B\u01b0\u1edbc 1: M\u1edf tr\u00ecnh duy\u1ec7t v\u00e0 truy c\u1eadp trang web chuy\u1ec3n \u0111\u1ed5i \u1ea3nh nh\u01b0 Convertio.<\/p>\n

B\u01b0\u1edbc 2: T\u00ecm ki\u1ebfm bi\u1ec3u t\u01b0\u1ee3ng “Ch\u1ecdn T\u1eadp tin” tr\u00ean m\u00e0n h\u00ecnh v\u00e0 nh\u1ea5p v\u00e0o. M\u1ed9t c\u1eeda s\u1ed5 s\u1ebd m\u1edf ra, cho ph\u00e9p b\u1ea1n ch\u1ecdn \u1ea3nh PNG c\u1ea7n chuy\u1ec3n \u0111\u1ed5i. \u0110\u1ec3 ch\u1ecdn nhi\u1ec1u \u1ea3nh c\u00f9ng l\u00fac, h\u00e3y gi\u1eef ph\u00edm Ctrl v\u00e0 nh\u1ea5p ch\u1ecdn \u1ea3nh.<\/p>\n

\"png-la-gi-chuyen-duoi-huong-dan\"<\/picture><\/p>\n

B\u01b0\u1edbc 3: Sau khi \u0111\u00e3 ch\u1ecdn \u1ea3nh, nh\u1ea5p v\u00e0o m\u0169i t\u00ean v\u00e0 ch\u1ecdn \u0111\u1ecbnh d\u1ea1ng mu\u1ed1n chuy\u1ec3n \u0111\u1ed5i – trong tr\u01b0\u1eddng h\u1ee3p n\u00e0y l\u00e0 JPEG. Cu\u1ed1i c\u00f9ng, b\u1ea1n ch\u1ec9 c\u1ea7n nh\u1ea5p “Chuy\u1ec3n \u0111\u1ed5i” v\u00e0 ch\u1edd \u0111\u1ee3i m\u1ed9t ch\u00fat. Khi qu\u00e1 tr\u00ecnh ho\u00e0n t\u1ea5t, b\u1ea1n c\u00f3 th\u1ec3 t\u1ea3i v\u1ec1 \u1ea3nh \u0111\u00e3 chuy\u1ec3n \u0111\u1ecbnh d\u1ea1ng c\u1ee7a m\u00ecnh.<\/p>\n

\"png-la-gi-chuyen-duoi-huong-dan-2\"<\/picture><\/p>\n

Chuy\u1ec3n<\/strong> PNG<\/strong> sang JPEG b\u1eb1ng Paint:<\/strong><\/p>\n

B\u01b0\u1edbc 1: M\u1edf ph\u1ea7n m\u1ec1m Paint c\u00f3 s\u1eb5n tr\u00ean m\u00e1y t\u00ednh. Nh\u1ea5p v\u00e0o th\u1ebb “File” \u1edf g\u00f3c tr\u00ean b\u00ean tr\u00e1i, sau \u0111\u00f3 ch\u1ecdn “Open”. M\u1ed9t c\u1eeda s\u1ed5 s\u1ebd xu\u1ea5t hi\u1ec7n, cho ph\u00e9p b\u1ea1n t\u00ecm v\u00e0 ch\u1ecdn \u1ea3nh PNG l\u00e0 g\u00ec<\/strong> c\u00f3 s\u1eb5n trong m\u00e1y.<\/p>\n

\"png-la-gi-chuyen-duoi-huong-dan-4\"<\/picture><\/p>\n

B\u01b0\u1edbc 2: Khi \u1ea3nh \u0111\u00e3 \u0111\u01b0\u1ee3c m\u1edf trong Paint, h\u00e3y ch\u1ecdn “File” m\u1ed9t l\u1ea7n n\u1eefa v\u00e0 sau \u0111\u00f3 “Save as”. Trong danh s\u00e1ch c\u00e1c \u0111\u1ecbnh d\u1ea1ng l\u01b0u, h\u00e3y ch\u1ecdn “JPEG picture”.<\/p>\n

\"png-la-gi-chuyen-duoi-huong-dan-5\"<\/picture><\/p>\n

\"png-la-gi-chuyen-duoi-huong-dan-6\"<\/picture><\/p>\n

B\u01b0\u1edbc 3: Ch\u1ecdn n\u01a1i b\u1ea1n mu\u1ed1n l\u01b0u \u1ea3nh \u0111\u00e3 chuy\u1ec3n \u0111\u1ecbnh d\u1ea1ng, \u0111\u1eb7t t\u00ean cho n\u00f3 (n\u1ebfu mu\u1ed1n) v\u00e0 nh\u1ea5p “Save”.<\/p>\n

\"png-la-gi-chuyen-duoi-huong-dan-7\"<\/picture><\/p>\n

V\u1eady l\u00e0 xong. C\u1ea3 hai c\u00e1ch tr\u00ean \u0111\u1ec1u nhanh ch\u00f3ng v\u00e0 d\u1ec5 d\u00e0ng, gi\u00fap b\u1ea1n c\u00f3 \u0111\u01b0\u1ee3c \u1ea3nh \u0111\u1ecbnh d\u1ea1ng mong mu\u1ed1n m\u00e0 kh\u00f4ng c\u1ea7n t\u1edbi b\u1ea5t k\u1ef3 k\u1ef9 thu\u1eadt n\u00e0o ph\u1ee9c t\u1ea1p.<\/p>\n

Chuy\u1ec3n PNG sang PDF<\/h3>\n

B\u1ea1n \u0111\u00e3 hi\u1ec3u h\u01a1n v\u1ec1 PNG<\/strong> l\u00e0 g\u00ec<\/strong> v\u00e0 mu\u1ed1n chuy\u1ec3n \u0111\u1ed5i PNG d\u01b0\u1edbi d\u1ea1ng PDF? D\u01b0\u1edbi \u0111\u00e2y l\u00e0 hai ph\u01b0\u01a1ng ph\u00e1p \u0111\u01a1n gi\u1ea3n gi\u00fap b\u1ea1n th\u1ef1c hi\u1ec7n \u0111i\u1ec1u \u0111\u00f3:<\/p>\n

Chuy\u1ec3n \u0111\u1ed5i tr\u1ef1c tuy\u1ebfn qua Convertio<\/strong><\/p>\n

B\u01b0\u1edbc 1: \u0110\u1ea7u ti\u00ean, m\u1edf tr\u00ecnh duy\u1ec7t v\u00e0 truy c\u1eadp trang web Convertio.<\/p>\n

\"png-la-gi-chuyen-duoi-huong-dan-pdf\"<\/picture><\/p>\n

B\u01b0\u1edbc 2: Nh\u1ea5p v\u00e0o bi\u1ec3u t\u01b0\u1ee3ng “Ch\u1ecdn T\u1eadp tin”, l\u00fac n\u00e0y, m\u1ed9t c\u1eeda s\u1ed5 m\u1edbi s\u1ebd hi\u1ec7n ra. T\u1eeb \u0111\u00e2y, ch\u1ecdn \u1ea3nh PNG b\u1ea1n mu\u1ed1n chuy\u1ec3n v\u00e0 sau \u0111\u00f3 nh\u1ea5p “Open”.<\/p>\n

\"png-la-gi-chuyen-duoi-huong-dan-1\"<\/picture><\/p>\n

B\u01b0\u1edbc 3: \u0110\u1eb7t con tr\u1ecf v\u00e0o m\u0169i t\u00ean xu\u1ed1ng, k\u00e9o xu\u1ed1ng m\u1ee5c “T\u00e0i li\u1ec7u” v\u00e0 t\u00ecm ki\u1ebfm l\u1ef1a ch\u1ecdn “PDF”. Ti\u1ebfp theo, ch\u1ec9 c\u1ea7n nh\u1ea5p “Chuy\u1ec3n \u0111\u1ed5i” v\u00e0 ch\u1edd \u0111\u1ee3i trong gi\u00e2y l\u00e1t. M\u1ed9t khi qu\u00e1 tr\u00ecnh chuy\u1ec3n \u0111\u1ed5i ho\u00e0n th\u00e0nh, b\u1ea1n c\u00f3 th\u1ec3 t\u1ea3i t\u1ec7p PDF v\u1eeba t\u1ea1o v\u1ec1 m\u00e1y t\u00ednh.<\/p>\n

\"png-la-gi-chuyen-duoi-huong-dan-pdf-2\"<\/picture><\/p>\n

S\u1eed d\u1ee5ng t\u00ednh n\u0103ng <\/strong>Print<\/strong> tr\u00ean Windows<\/strong><\/p>\n

B\u01b0\u1edbc 1: M\u1edf \u1ea3nh PNG m\u00e0 b\u1ea1n mu\u1ed1n chuy\u1ec3n. T\u00ecm ki\u1ebfm v\u00e0 nh\u1ea5p v\u00e0o bi\u1ec3u t\u01b0\u1ee3ng m\u00e1y in \u1edf g\u00f3c tr\u00ean b\u00ean ph\u1ea3i.<\/p>\n

\"png-la-gi-chuyen-duoi-huong-dan-pdf-3\"<\/picture><\/p>\n

B\u01b0\u1edbc 2: Trong h\u1ed9p tho\u1ea1i m\u1edbi xu\u1ea5t hi\u1ec7n, ch\u1ecdn “Print”.<\/p>\n

\"png-la-gi-chuyen-duoi-huong-dan-pdf-4\"<\/picture><\/p>\n

B\u01b0\u1edbc 3: M\u1ed9t c\u1eeda s\u1ed5 m\u1edbi s\u1ebd m\u1edf ra, cho ph\u00e9p b\u1ea1n \u0111\u1eb7t t\u00ean cho t\u1ec7p PDF s\u1eafp t\u1ea1o v\u00e0 ch\u1ecdn n\u01a1i l\u01b0u tr\u1eef. Cu\u1ed1i c\u00f9ng, nh\u1ea5p “Save” \u0111\u1ec3 ho\u00e0n th\u00e0nh.<\/p>\n

\"png-la-gi-chuyen-duoi-huong-dan-pdf-5\"<\/picture><\/p>\n

Hai c\u00e1ch tr\u00ean \u0111\u1ec1u ti\u1ec7n l\u1ee3i v\u00e0 hi\u1ec7u qu\u1ea3. B\u1ea1n ch\u1ec9 c\u1ea7n ch\u1ecdn ph\u01b0\u01a1ng ph\u00e1p ph\u00f9 h\u1ee3p v\u1edbi m\u00ecnh v\u00e0 th\u1ef1c hi\u1ec7n theo h\u01b0\u1edbng d\u1eabn.<\/p>\n

C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p v\u1ec1 PNG l\u00e0 g\u00ec?<\/h2>\n

\u0110\u1ec3 hi\u1ec3u r\u00f5 h\u01a1n v\u1ec1 file PNG, b\u1ea1n vui l\u00f2ng tham kh\u1ea3o th\u00eam m\u1ed9t s\u1ed1 c\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p v\u00e0 c\u00e2u tr\u1ea3 l\u1eddi b\u00ean d\u01b0\u1edbi:<\/p>\n

PNG c\u00f3 h\u1ed7 tr\u1ee3 animation kh\u00f4ng?<\/strong><\/p>\n

\u0110\u1ecbnh d\u1ea1ng PNG truy\u1ec1n th\u1ed1ng kh\u00f4ng h\u1ed7 tr\u1ee3 animation. Tuy nhi\u00ean, c\u00f3 m\u1ed9t phi\u00ean b\u1ea3n m\u1edf r\u1ed9ng c\u1ee7a PNG t\u00ean l\u00e0 APNG (Animated Portable Network Graphics) chuy\u00ean d\u00f9ng \u0111\u1ec3 l\u01b0u tr\u1eef c\u00e1c h\u00ecnh \u1ea3nh \u0111\u1ed9ng. APNG \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf v\u1edbi m\u1ee5c ti\u00eau gi\u1eef nguy\u00ean t\u00ednh n\u0103ng c\u1ee7a PNG nh\u01b0ng th\u00eam kh\u1ea3 n\u0103ng h\u1ed7 tr\u1ee3 h\u00ecnh \u1ea3nh \u0111\u1ed9ng. Kh\u00f4ng ph\u1ea3i t\u1ea5t c\u1ea3 c\u00e1c tr\u00ecnh duy\u1ec7t ho\u1eb7c ph\u1ea7n m\u1ec1m \u0111\u1ec1u h\u1ed7 tr\u1ee3 APNG, n\u00ean b\u1ea1n c\u1ea7n ki\u1ec3m tra t\u01b0\u01a1ng th\u00edch tr\u01b0\u1edbc khi s\u1eed d\u1ee5ng.<\/p>\n

\"png-la-gi-cau-hoi\"<\/picture><\/p>\n

T\u1ea1i sao PNG th\u01b0\u1eddng c\u00f3 k\u00edch th\u01b0\u1edbc l\u1edbn?<\/strong><\/p>\n

PNG s\u1eed d\u1ee5ng m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p n\u00e9n kh\u00f4ng m\u1ea5t m\u00e1t. Ngh\u0129a l\u00e0 khi b\u1ea1n l\u01b0u h\u00ecnh \u1ea3nh d\u01b0\u1edbi \u0111\u1ecbnh d\u1ea1ng PNG, kh\u00f4ng c\u00f3 th\u00f4ng tin n\u00e0o t\u1eeb h\u00ecnh \u1ea3nh g\u1ed1c b\u1ecb m\u1ea5t \u0111i. \u0110i\u1ec1u n\u00e0y gi\u00fap h\u00ecnh \u1ea3nh gi\u1eef \u0111\u01b0\u1ee3c ch\u1ea5t l\u01b0\u1ee3ng t\u1ed1t nh\u1ea5t, nh\u01b0ng c\u0169ng d\u1eabn \u0111\u1ebfn k\u00edch th\u01b0\u1edbc file l\u1edbn, \u0111\u1eb7c bi\u1ec7t l\u00e0 v\u1edbi nh\u1eefng h\u00ecnh \u1ea3nh c\u00f3 nhi\u1ec1u chi ti\u1ebft v\u00e0 m\u00e0u s\u1eafc. Trong m\u1ed9t s\u1ed1 tr\u01b0\u1eddng h\u1ee3p, n\u1ebfu b\u1ea1n c\u1ea7n gi\u1ea3m k\u00edch th\u01b0\u1edbc file nh\u01b0ng v\u1eabn gi\u1eef ch\u1ea5t l\u01b0\u1ee3ng \u1ea3nh, vi\u1ec7c s\u1eed d\u1ee5ng c\u00e1c c\u00f4ng c\u1ee5 t\u1ed1i \u01b0u h\u00f3a PNG c\u00f3 th\u1ec3 l\u00e0 m\u1ed9t gi\u1ea3i ph\u00e1p h\u1eefu \u00edch.<\/p>\n

T\u1ea1m k\u1ebft<\/h2>\n

Hi v\u1ecdng sau khi tham kh\u1ea3o b\u00e0i vi\u1ebft n\u00e0y, b\u1ea1n \u0111\u00e3 hi\u1ec3u r\u00f5 h\u01a1n v\u1ec1 PNG l\u00e0 g\u00ec<\/strong> c\u0169ng nh\u01b0 c\u00f4ng d\u1ee5ng v\u00e0 c\u00e1ch chuy\u1ec3n \u0111u\u00f4i hi\u1ec7u qu\u1ea3. V\u1edbi kh\u1ea3 n\u0103ng b\u1ea3o t\u1ed3n ch\u1ea5t l\u01b0\u1ee3ng h\u00ecnh \u1ea3nh m\u00e0 kh\u00f4ng m\u1ea5t m\u00e1t th\u00f4ng tin, c\u00f9ng v\u1edbi t\u00ednh n\u0103ng \u0111\u1ed9 trong su\u1ed1t, PNG \u0111em l\u1ea1i s\u1ef1 linh ho\u1ea1t tuy\u1ec7t v\u1eddi cho c\u00e1c nh\u00e0 thi\u1ebft k\u1ebf v\u00e0 nh\u1eefng ai mu\u1ed1n tr\u00ecnh b\u00e0y h\u00ecnh \u1ea3nh m\u1ed9t c\u00e1ch chuy\u00ean nghi\u1ec7p. Nh\u00ecn chung, d\u00f9 c\u00f3 k\u00edch th\u01b0\u1edbc file l\u1edbn h\u01a1n m\u1ed9t s\u1ed1 \u0111\u1ecbnh d\u1ea1ng kh\u00e1c, nh\u01b0ng ch\u1ea5t l\u01b0\u1ee3ng v\u00e0 s\u1ef1 \u0111a d\u1ee5ng m\u00e0 PNG mang l\u1ea1i \u0111\u1ea3m b\u1ea3o n\u00f3 s\u1ebd ti\u1ebfp t\u1ee5c \u0111\u01b0\u1ee3c \u01b0a chu\u1ed9ng trong t\u01b0\u01a1ng lai.<\/p>\n

Xem th\u00eam:<\/p>\n